VI. Read the passage and choose the correct answers. 

Fossil fuel such as coal, oil and gas has been the world’s main energy source for the past few centuries. Humans began using fossil fuel in the 18th century during the industrial revolution. Its popularity increased in the mid1900s and became our primary source of energy. Nowadays fossil fuel accounts for more than 80% of the world’s energy consumption. However, fossil fuel is running out not only because it’s a non-renewable source of energy but also because of human population growth. Scientists believe that at current rate we will only have enough fossil energy to use until 2088. Many developed countries in the meantime have been investing in scientific programs trying to find the best replacement for fossil fuel. 

1)1. What does the writer call fossil fuel in the passage?

A. Primary source of energy and non-renewable source of energy. 

B. Primary source of energy, non-renewable source of energy and fossil energy.

C. Fossil energy and non-renewable source of energy.

D. None are correct.

2)How much fossil fuel do people in the world consume today? 

A. All of fossil fuel in the world. 

B. 80% of fossil fuel in the world.

C. 4/5 of the world’s energy consumption.

D. ½ the world’s energy consumption. 

3. Why does fossil fuel run out?

A. Because it cannot be renewed.

B. Because more and more people use it and it cannot be renewed.

C. Because more and more people use it.

D. Because some scientists said so

4)What are many developed countries doing to solve the problem?

A. They are searching for new source of energy.

B. They are predicting the amount of fossil fuels.

C. They are studying some ways to renew fossil fuels.

D. They are advising people not to use fossil fuels.

5)5. Which of the following is NOT discussed in the passage?

A. Fossil energy has been mainly used since 18th century.

B. Fossil energy became popular in the mid-1900s.

C. Fossil fuel is believed to run out by 2088.

D. Fossil fuel can be replaced by another non-renewable source of energy.