When we combine disulfide and chlorine we can make carbon tetrachloride. It is a colorless and flammable liquid. Nowadays this mixture is extensively used in industry because of its efficiency as a solvent. It is also used in the production of propellants.

Notwithstanding its well-known use in industry, carbon tetrachloride has been banned for domestic use. Some years ago, carbon tetrachloride was a usual ingredient in cleaning compounds that were used in the home, but it was found to be hazardous. It changes into a poisonous gas when heated. Several countries have cancelled permission for the home use of carbon tetrachloride since 1970. Similar action with various other chemical compounds has been taken since then.

The main point of this passage is that...

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When we combine disulfide and chlorine we can make carbon tetrachloride. It is a colorless and flammable liquid. Nowadays this mixture is extensively used in industry because of its efficiency as a solvent. It is also used in the production of propellants.

Notwithstanding its well-known use in industry, carbon tetrachloride has been banned for domestic use. Some years ago, carbon tetrachloride was a usual ingredient in cleaning compounds that were used in the home, but it was found to be hazardous. It changes into a poisonous gas when heated. Several countries have cancelled permission for the home use of carbon tetrachloride since 1970. Similar action with various other chemical compounds has been taken since then.

The word banned is closest in meaning to...

.

When we combine disulfide and chlorine we can make carbon tetrachloride. It is a colorless and flammable liquid. Nowadays this mixture is extensively used in industry because of its efficiency as a solvent. It is also used in the production of propellants.

Notwithstanding its well-known use in industry, carbon tetrachloride has been banned for domestic use. Some years ago, carbon tetrachloride was a usual ingredient in cleaning compounds that were used in the home, but it was found to be hazardous. It changes into a poisonous gas when heated. Several countries have cancelled permission for the home use of carbon tetrachloride since 1970. Similar action with various other chemical compounds has been taken since then.

According to the passage, before 1970 carbon tetrachloride was...

.

When we combine disulfide and chlorine we can make carbon tetrachloride. It is a colorless and flammable liquid. Nowadays this mixture is extensively used in industry because of its efficiency as a solvent. It is also used in the production of propellants.

Notwithstanding its well-known use in industry, carbon tetrachloride has been banned for domestic use. Some years ago, carbon tetrachloride was a usual ingredient in cleaning compounds that were used in the home, but it was found to be hazardous. It changes into a poisonous gas when heated. Several countries have cancelled permission for the home use of carbon tetrachloride since 1970. Similar action with various other chemical compounds has been taken since then.

It is stated in the passage that when carbon tetrachloride is heated, it becomes...

.

When we combine disulfide and chlorine we can make carbon tetrachloride. It is a colorless and flammable liquid. Nowadays this mixture is extensively used in industry because of its efficiency as a solvent. It is also used in the production of propellants.

Notwithstanding its well-known use in industry, carbon tetrachloride has been banned for domestic use. Some years ago, carbon tetrachloride was a usual ingredient in cleaning compounds that were used in the home, but it was found to be hazardous. It changes into a poisonous gas when heated. Several countries have cancelled permission for the home use of carbon tetrachloride since 1970. Similar action with various other chemical compounds has been taken since then.

It can be inferred from the passage that one role of the different governments is to...

.

When we combine disulfide and chlorine we can make carbon tetrachloride. It is a colorless and flammable liquid. Nowadays this mixture is extensively used in industry because of its efficiency as a solvent. It is also used in the production of propellants.

Notwithstanding its well-known use in industry, carbon tetrachloride has been banned for domestic use. Some years ago, carbon tetrachloride was a usual ingredient in cleaning compounds that were used in the home, but it was found to be hazardous. It changes into a poisonous gas when heated. Several countries have cancelled permission for the home use of carbon tetrachloride since 1970. Similar action with various other chemical compounds has been taken since then.

The paragraph following the passage most likely discusses...

.

When observing the sky with the naked eye, the positions of stars in the sky relative to one another do not seem to change. As a result, stars are frequently considered being fixed in the same position. Many unaware stargazers falsely assume that each star has its own permanent home in the nocturnal sky.

     In reality, even though stars are constantly moving, the changes are barely perceptible here because of the enormous distances between stars themselves and from stars to Earth. One example of a very fast-moving star shows why this misunderstanding prevails. It takes approximately 250 years for a relatively rapid star-like Tocher’s star to move a distance in the skies corresponding to the diameter of the earth’s moon. When the apparently slight movement of the stars is contrasted with the movement of the planets, the stars are seemingly unmoving.

The expression naked eye most probably refers to...

.

When observing the sky with the naked eye, the positions of stars in the sky relative to one another do not seem to change. As a result, stars are frequently considered being fixed in the same position. Many unaware stargazers falsely assume that each star has its own permanent home in the nocturnal sky.

     In reality, even though stars are constantly moving, the changes are barely perceptible here because of the enormous distances between stars themselves and from stars to Earth. One example of a very fast-moving star shows why this misunderstanding prevails. It takes approximately 250 years for a relatively rapid star-like Tocher’s star to move a distance in the skies corresponding to the diameter of the earth’s moon. When the apparently slight movement of the stars is contrasted with the movement of the planets, the stars are seemingly unmoving.

According to the passage, the distances between the stars and Earth are...

.

When observing the sky with the naked eye, the positions of stars in the sky relative to one another do not seem to change. As a result, stars are frequently considered being fixed in the same position. Many unaware stargazers falsely assume that each star has its own permanent home in the nocturnal sky.

     In reality, even though stars are constantly moving, the changes are barely perceptible here because of the enormous distances between stars themselves and from stars to Earth. One example of a very fast-moving star shows why this misunderstanding prevails. It takes approximately 250 years for a relatively rapid star-like Tocher’s star to move a distance in the skies corresponding to the diameter of the earth’s moon. When the apparently slight movement of the stars is contrasted with the movement of the planets, the stars are seemingly unmoving.

The word perceptible is closest in meaning to...

.

When observing the sky with the naked eye, the positions of stars in the sky relative to one another do not seem to change. As a result, stars are frequently considered being fixed in the same position. Many unaware stargazers falsely assume that each star has its own permanent home in the nocturnal sky.

     In reality, even though stars are constantly moving, the changes are barely perceptible here because of the enormous distances between stars themselves and from stars to Earth. One example of a very fast-moving star shows why this misunderstanding prevails. It takes approximately 250 years for a relatively rapid star-like Tocher’s star to move a distance in the skies corresponding to the diameter of the earth’s moon. When the apparently slight movement of the stars is contrasted with the movement of the planets, the stars are seemingly unmoving.

The passage states that in 250 years Tocher’s star can move...

.

When observing the sky with the naked eye, the positions of stars in the sky relative to one another do not seem to change. As a result, stars are frequently considered being fixed in the same position. Many unaware stargazers falsely assume that each star has its own permanent home in the nocturnal sky.

     In reality, even though stars are constantly moving, the changes are barely perceptible here because of the enormous distances between stars themselves and from stars to Earth. One example of a very fast-moving star shows why this misunderstanding prevails. It takes approximately 250 years for a relatively rapid star-like Tocher’s star to move a distance in the skies corresponding to the diameter of the earth’s moon. When the apparently slight movement of the stars is contrasted with the movement of the planets, the stars are seemingly unmoving.

The passage implies that from Earth it appears that the planets...

.

When observing the sky with the naked eye, the positions of stars in the sky relative to one another do not seem to change. As a result, stars are frequently considered being fixed in the same position. Many unaware stargazers falsely assume that each star has its own permanent home in the nocturnal sky.

     In reality, even though stars are constantly moving, the changes are barely perceptible here because of the enormous distances between stars themselves and from stars to Earth. One example of a very fast-moving star shows why this misunderstanding prevails. It takes approximately 250 years for a relatively rapid star-like Tocher’s star to move a distance in the skies corresponding to the diameter of the earth’s moon. When the apparently slight movement of the stars is contrasted with the movement of the planets, the stars are seemingly unmoving.

The paragraph following the passage most probably discusses ...

.

Courts in our country have traditionally granted divorces on fault grounds: the wife is assumed to be at fault in causing the divorce. Oftener today, however, divorces are being accepted on a no-fault basis.

Protagonists of no-fault divorce argue that when a marriage fails, it is seldom the case that one marriage partner is completely to accuse and the other innocent. A failed marriage is much more often the consequence of errors committed by both partners.

Another quarrel in favor of no-fault divorce is that proving fault in court, a public field is a critical process that only helps to lengthen the divorce process and that dramatically increases the negative feelings present in a divorce. If a couple can reach a decision to divorce without first deciding which partner is to blame, the divorce settlement can be negotiated more easily and equitably and the post-divorce healing process can begin faster.

What does the passage mainly discuss?

.

Courts in our country have traditionally granted divorces on fault grounds: the wife is assumed to be at fault in causing the divorce. Oftener today, however, divorces are being accepted on a no-fault basis.

Protagonists of no-fault divorce argue that when a marriage fails, it is seldom the case that one marriage partner is completely to accuse and the other innocent. A failed marriage is much more often the consequence of errors committed by both partners.

Another quarrel in favor of no-fault divorce is that proving fault in court, a public field is a critical process that only helps to lengthen the divorce process and that dramatically increases the negative feelings present in a divorce. If a couple can reach a decision to divorce without first deciding which partner is to blame, the divorce settlement can be negotiated more easily and equitably and the post-divorce healing process can begin faster.

According to the passage, no-fault divorces...

.

Courts in our country have traditionally granted divorces on fault grounds: the wife is assumed to be at fault in causing the divorce. Oftener today, however, divorces are being accepted on a no-fault basis.

Protagonists of no-fault divorce argue that when a marriage fails, it is seldom the case that one marriage partner is completely to accuse and the other innocent. A failed marriage is much more often the consequence of errors committed by both partners.

Another quarrel in favor of no-fault divorce is that proving fault in court, a public field is a critical process that only helps to lengthen the divorce process and that dramatically increases the negative feelings present in a divorce. If a couple can reach a decision to divorce without first deciding which partner is to blame, the divorce settlement can be negotiated more easily and equitably and the post-divorce healing process can begin faster.

It is implied in the passage that..

.

Courts in our country have traditionally granted divorces on fault grounds: the wife is assumed to be at fault in causing the divorce. Oftener today, however, divorces are being accepted on a no-fault basis.

Protagonists of no-fault divorce argue that when a marriage fails, it is seldom the case that one marriage partner is completely to accuse and the other innocent. A failed marriage is much more often the consequence of errors committed by both partners.

Another quarrel in favor of no-fault divorce is that proving fault in court, a public field is a critical process that only helps to lengthen the divorce process and that dramatically increases the negative feelings present in a divorce. If a couple can reach a decision to divorce without first deciding which partner is to blame, the divorce settlement can be negotiated more easily and equitably and the post-divorce healing process can begin faster.

The passage states that a public trial to prove the fault of one spouse can.

.

Courts in our country have traditionally granted divorces on fault grounds: the wife is assumed to be at fault in causing the divorce. Oftener today, however, divorces are being accepted on a no-fault basis.

Protagonists of no-fault divorce argue that when a marriage fails, it is seldom the case that one marriage partner is completely to accuse and the other innocent. A failed marriage is much more often the consequence of errors committed by both partners.

Another quarrel in favor of no-fault divorce is that proving fault in court, a public field is a critical process that only helps to lengthen the divorce process and that dramatically increases the negative feelings present in a divorce. If a couple can reach a decision to divorce without first deciding which partner is to blame, the divorce settlement can be negotiated more easily and equitably and the post-divorce healing process can begin faster.

Which of the following is NOT listed in this passage as an argument in favor of no-fault divorce?

.

Courts in our country have traditionally granted divorces on fault grounds: the wife is assumed to be at fault in causing the divorce. Oftener today, however, divorces are being accepted on a no-fault basis.

Protagonists of no-fault divorce argue that when a marriage fails, it is seldom the case that one marriage partner is completely to accuse and the other innocent. A failed marriage is much more often the consequence of errors committed by both partners.

Another quarrel in favor of no-fault divorce is that proving fault in court, a public field is a critical process that only helps to lengthen the divorce process and that dramatically increases the negative feelings present in a divorce. If a couple can reach a decision to divorce without first deciding which partner is to blame, the divorce settlement can be negotiated more easily and equitably and the post-divorce healing process can begin faster.

The word present could most easily be replaced by...

.

The fortifications of the 19th century offered many other benefits for the American West besides their military function. The founding of these posts broke new ground and protected audacious adventurers and expeditions, as well as local settlers. The fortifications also served as bases where enterprising business owners could bring trade to the West, offering supplies and refreshments to both soldiers and pioneers. Poles like Fort Laramie provided supplies for the wagon trains that traveled the natural highways to new frontiers. Some stalls became stations for the pony express; others, like Fort Davis, were stagecoach stops for weary travelers. These functions, of course, suggest that the contributions of the forts to Western civilization and development extended beyond patrol duty.

Through the establishment of military posts, other contributions were made to the development of Western culture. Many locations maintained libraries or reading rooms, and some, such as Fort Davis, had schools. The post chapels provided a setting for religious services and weddings. Throughout the wild, post bands provided entertainment and raised morale. During the last part of the 19th century, to reduce expenses, gardening was encouraged in the forts, making experimental agriculture another activity for the military. The military stationed in the various forts also played a role in civilian life by helping to maintain order, and civil servants often asked the army for protection.

From early colonial times throughout the 19th century, diseases became the major defense problem. They slowed down the construction of fortifications and inhibited their military functions.

The word audacious is closest in meaning to...

.

The fortifications of the 19th century offered many other benefits for the American West besides their military function. The founding of these posts broke new ground and protected audacious adventurers and expeditions, as well as local settlers. The fortifications also served as bases where enterprising business owners could bring trade to the West, offering supplies and refreshments to both soldiers and pioneers. Poles like Fort Laramie provided supplies for the wagon trains that traveled the natural highways to new frontiers. Some stalls became stations for the pony express; others, like Fort Davis, were stagecoach stops for weary travelers. These functions, of course, suggest that the contributions of the forts to Western civilization and development extended beyond patrol duty.

Through the establishment of military posts, other contributions were made to the development of Western culture. Many locations maintained libraries or reading rooms, and some, such as Fort Davis, had schools. The post chapels provided a setting for religious services and weddings. Throughout the wild, post bands provided entertainment and raised morale. During the last part of the 19th century, to reduce expenses, gardening was encouraged in the forts, making experimental agriculture another activity for the military. The military stationed in the various forts also played a role in civilian life by helping to maintain order, and civil servants often asked the army for protection.

From early colonial times throughout the 19th century, diseases became the major defense problem. They slowed down the construction of fortifications and inhibited their military functions.

Which of the following would a traveler be LEAST likely to obtain at Fort Laramie?

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The fortifications of the 19th century offered many other benefits for the American West besides their military function. The founding of these posts broke new ground and protected audacious adventurers and expeditions, as well as local settlers. The fortifications also served as bases where enterprising business owners could bring trade to the West, offering supplies and refreshments to both soldiers and pioneers. Poles like Fort Laramie provided supplies for the wagon trains that traveled the natural highways to new frontiers. Some stalls became stations for the pony express; others, like Fort Davis, were stagecoach stops for weary travelers. These functions, of course, suggest that the contributions of the forts to Western civilization and development extended beyond patrol duty.

Through the establishment of military posts, other contributions were made to the development of Western culture. Many locations maintained libraries or reading rooms, and some, such as Fort Davis, had schools. The post chapels provided a setting for religious services and weddings. Throughout the wild, post bands provided entertainment and raised morale. During the last part of the 19th century, to reduce expenses, gardening was encouraged in the forts, making experimental agriculture another activity for the military. The military stationed in the various forts also played a role in civilian life by helping to maintain order, and civil servants often asked the army for protection.

From early colonial times throughout the 19th century, diseases became the major defense problem. They slowed down the construction of fortifications and inhibited their military functions.

The word others refers to...

The fortifications of the 19th century offered many other benefits for the American West besides their military function. The founding of these posts broke new ground and protected audacious adventurers and expeditions, as well as local settlers. The fortifications also served as bases where enterprising business owners could bring trade to the West, offering supplies and refreshments to both soldiers and pioneers. Poles like Fort Laramie provided supplies for the wagon trains that traveled the natural highways to new frontiers. Some stalls became stations for the pony express; others, like Fort Davis, were stagecoach stops for weary travelers. These functions, of course, suggest that the contributions of the forts to Western civilization and development extended beyond patrol duty.

Through the establishment of military posts, other contributions were made to the development of Western culture. Many locations maintained libraries or reading rooms, and some, such as Fort Davis, had schools. The post chapels provided a setting for religious services and weddings. Throughout the wild, post bands provided entertainment and raised morale. During the last part of the 19th century, to reduce expenses, gardening was encouraged in the forts, making experimental agriculture another activity for the military. The military stationed in the various forts also played a role in civilian life by helping to maintain order, and civil servants often asked the army for protection.

From early colonial times throughout the 19th century, diseases became the major defense problem. They slowed down the construction of fortifications and inhibited their military functions

Which of the following is the most likely inference about the decision to promote gardening at forts?

The fortifications of the 19th century offered many other benefits for the American West besides their military function. The founding of these posts broke new ground and protected audacious adventurers and expeditions, as well as local settlers. The fortifications also served as bases where enterprising business owners could bring trade to the West, offering supplies and refreshments to both soldiers and pioneers. Poles like Fort Laramie provided supplies for the wagon trains that traveled the natural highways to new frontiers. Some stalls became stations for the pony express; others, like Fort Davis, were stagecoach stops for weary travelers. These functions, of course, suggest that the contributions of the forts to Western civilization and development extended beyond patrol duty.

Through the establishment of military posts, other contributions were made to the development of Western culture. Many locations maintained libraries or reading rooms, and some, such as Fort Davis, had schools. The post chapels provided a setting for religious services and weddings. Throughout the wild, post bands provided entertainment and raised morale. During the last part of the 19th century, to reduce expenses, gardening was encouraged in the forts, making experimental agriculture another activity for the military. The military stationed in the various forts also played a role in civilian life by helping to maintain order, and civil servants often asked the army for protection.

From early colonial times throughout the 19th century, diseases became the major defense problem. They slowed down the construction of fortifications and inhibited their military functions.

According to the passage, which of the following posed the biggest obstacle to the development of military forts?

.

The fortifications of the 19th century offered many other benefits for the American West besides their military function. The founding of these posts broke new ground and protected audacious adventurers and expeditions, as well as local settlers. The fortifications also served as bases where enterprising business owners could bring trade to the West, offering supplies and refreshments to both soldiers and pioneers. Poles like Fort Laramie provided supplies for the wagon trains that traveled the natural highways to new frontiers. Some stalls became stations for the pony express; others, like Fort Davis, were stagecoach stops for weary travelers. These functions, of course, suggest that the contributions of the forts to Western civilization and development extended beyond patrol duty.

Through the establishment of military posts, other contributions were made to the development of Western culture. Many locations maintained libraries or reading rooms, and some, such as Fort Davis, had schools. The post chapels provided a setting for religious services and weddings. Throughout the wild, post bands provided entertainment and raised morale. During the last part of the 19th century, to reduce expenses, gardening was encouraged in the forts, making experimental agriculture another activity for the military. The military stationed in the various forts also played a role in civilian life by helping to maintain order, and civil servants often asked the army for protection.

From early colonial times throughout the 19th century, diseases became the major defense problem. They slowed down the construction of fortifications and inhibited their military functions.

The author organizes the discussion of forts by...

.

Our eyes and ears could be called transformers, as they sense the light and sound around us and convert them into electrical impulses that the brain can interpret. These electrical impulses that have been transformed by the eye and the ear reach the brain and are transformed into messages that we can interpret. For the eye, the process begins when the eye admits light waves, bends them at the cornea and lens, and then focuses them on the retina. At the back of each eye, nerve fibers group together to form optic nerves, which unite and then divide into two optic tracts. Some of the fibers cross so that part of the right visual field entrance goes to the left side of the brain and vice versa. The process in the ear is carried out through sensory cells that are transported in fluid-filled channels and that are extremely sensitive to vibrations. The sound that is transformed into electricity travels along the nerve fibers of the auditory nerve. These fibers form a synopsis with neurons that carry messages to the auditory cortex on each side of the brain.

According to the author, we might call our eyes and ears "transformers" because

.

Our eyes and ears could be called transformers, as they sense the light and sound around us and convert them into electrical impulses that the brain can interpret. These electrical impulses that have been transformed by the eye and the ear reach the brain and are transformed into messages that we can interpret. For the eye, the process begins when the eye admits light waves, bends them at the cornea and lens, and then focuses them on the retina. At the back of each eye, nerve fibers group together to form optic nerves, which unite and then divide into two optic tracts. Some of the fibers cross so that part of the right visual field entrance goes to the left side of the brain and vice versa. The process in the ear is carried out through sensory cells that are transported in fluid-filled channels and that are extremely sensitive to vibrations. The sound that is transformed into electricity travels along the nerve fibers of the auditory nerve. These fibers form a synopsis with neurons that carry messages to the auditory cortex on each side of the brain.

What does the word them refer to?

.

Our eyes and ears could be called transformers, as they sense the light and sound around us and convert them into electrical impulses that the brain can interpret. These electrical impulses that have been transformed by the eye and the ear reach the brain and are transformed into messages that we can interpret. For the eye, the process begins when the eye admits light waves, bends them at the cornea and lens, and then focuses them on the retina. At the back of each eye, nerve fibers group together to form optic nerves, which unite and then divide into two optic tracts. Some of the fibers cross so that part of the right visual field entrance goes to the left side of the brain and vice versa. The process in the ear is carried out through sensory cells that are transported in fluid-filled channels and that are extremely sensitive to vibrations. The sound that is transformed into electricity travels along the nerve fibers of the auditory nerve. These fibers form a synopsis with neurons that carry messages to the auditory cortex on each side of the brain.

The word split is closest in meaning to which of the following? 

.

Our eyes and ears could be called transformers, as they sense the light and sound around us and convert them into electrical impulses that the brain can interpret. These electrical impulses that have been transformed by the eye and the ear reach the brain and are transformed into messages that we can interpret. For the eye, the process begins when the eye admits light waves, bends them at the cornea and lens, and then focuses them on the retina. At the back of each eye, nerve fibers group together to form optic nerves, which unite and then divide into two optic tracts. Some of the fibers cross so that part of the right visual field entrance goes to the left side of the brain and vice versa. The process in the ear is carried out through sensory cells that are transported in fluid-filled channels and that are extremely sensitive to vibrations. The sound that is transformed into electricity travels along the nerve fibers of the auditory nerve. These fibers form a synopsis with neurons that carry messages to the auditory cortex on each side of the brain.

According to the passage, when input from the right visual field goes into the left side of the brain, what happens? 

.

Our eyes and ears could be called transformers, as they sense the light and sound around us and convert them into electrical impulses that the brain can interpret. These electrical impulses that have been transformed by the eye and the ear reach the brain and are transformed into messages that we can interpret. For the eye, the process begins when the eye admits light waves, bends them at the cornea and lens, and then focuses them on the retina. At the back of each eye, nerve fibers group together to form optic nerves, which unite and then divide into two optic tracts. Some of the fibers cross so that part of the right visual field entrance goes to the left side of the brain and vice versa. The process in the ear is carried out through sensory cells that are transported in fluid-filled channels and that are extremely sensitive to vibrations. The sound that is transformed into electricity travels along the nerve fibers of the auditory nerve. These fibers form a synopsis with neurons that carry messages to the auditory cortex on each side of the brain.

The phrase carried out could best be replaced by... 

.

Our eyes and ears could be called transformers, as they sense the light and sound around us and convert them into electrical impulses that the brain can interpret. These electrical impulses that have been transformed by the eye and the ear reach the brain and are transformed into messages that we can interpret. For the eye, the process begins when the eye admits light waves, bends them at the cornea and lens, and then focuses them on the retina. At the back of each eye, nerve fibers group together to form optic nerves, which unite and then divide into two optic tracts. Some of the fibers cross so that part of the right visual field entrance goes to the left side of the brain and vice versa. The process in the ear is carried out through sensory cells that are transported in fluid-filled channels and that are extremely sensitive to vibrations. The sound that is transformed into electricity travels along the nerve fibers of the auditory nerve. These fibers form a synopsis with neurons that carry messages to the auditory cortex on each side of the brain.

According to the passage, optic nerves eventually

.