Question

1. cars burn as fuel.

a) coal
b) crude oil
c) gasoline
d) kerosine

1. today, about % of families in the united states own a car.

a) 98%
b) 92%
c) 86%
d) 80%

1. true or false: plastic is made from crude oil / fossil fuels

a) true
b) false

1. true or false: some medicines are made from crude oil / fossil fuels

a) true
b) false

Explanation:

• For question 18: Gasoline is a common fuel for cars. Coal is mainly used in power plants, crude oil is the raw material for making gasoline (not directly used as car fuel in most cases), and kerosene is used in jet engines etc.
• For question 19: According to general statistics, about 92% of US families own a car.
• For question 20: Plastic is indeed made from crude oil / fossil fuels through chemical processes.
• For question 21: Some medicines have components derived from crude oil / fossil fuels (e.g., certain solvents or synthetic intermediates).

Answer:

1. c) Gasoline
2. b) 92%
3. a) True
4. a) True