Reading 1 (carbon)

The main point of this passage is that

• carbon tetrachloride can be very

  dangerous when it is heated

• the government banned carbon

  tetrachloride in 1970

• although carbon tetrachloride can

  legally be used in industry, it is not

  allowed in home products

• carbon tetrachloride used to be a

  regular part of cleaning compounds

The word "widely" in line 2 could most

easily be replaced by

• grandly

• extensively

• largely

• hugely

The word "banned" in line 4 is closest in

meaning to

• forbidden

• allowed

• suggested

• instituted

According to the passage, before 1970

carbon tetrachloride was

• used by itself as a cleanser

• banned in industrial use

• often used as a component of cleaning

  products

• not allowed in home cleaning products

It is stated in the passage that when carbon

tetrachloride is heated, it becomes

• harmful

• colorless

• a cleaning compound

• inflammable

The word "inhaled" in line 7 is closest in

meaning to

• warmed

• breathed in

• carelessly used

• blown

The word "revoked" in line 8 could most

easily be replaced by

• gave

• granted

• instituted

• took away

It can be inferred from the passage that

one role of the U.S. government is to

• regulate product safety

• prohibit any use of carbon

  tetrachloride

• instruct industry on cleaning

  methodologies

• ban the use of any chemicals

The paragraph following the passage most

likely discusses

• additional uses for carbon

  tetrachloride

• the banning of various chemical

  compounds by the U.S. government

• further dangerous effects of carbon

  tetrachloride

• the major characteristics of carbon

  tetrachloride