Compare energy resources for generating electricity

Question 1

Is this energy resource renewable or non-renewable: biofuel?

• A. renewable
• B. non-renewable

Question 2

Why is a gas power station useful even in a grid with lots of renewables?

• A. It works without fuel
• B. It can be started up quickly to meet sudden demand
• C. It produces no carbon dioxide
• D. Gas is renewable

Question 3

In one year a country generated 250 TWh of electricity. Renewables supplied (TWh): wind 62.5, solar 17.5, hydroelectric 7.5. What percentage of the electricity came from these renewables?

Answer %

Question 4

Is this energy resource renewable or non-renewable: solar?

• A. renewable
• B. non-renewable

Question 5

Nuclear power stations release very little carbon dioxide while running. What is a main disadvantage?

• A. Radioactive waste must be stored safely for a very long time
• B. They cannot generate much electricity
• C. They only work when it is sunny
• D. They produce acid rain

Question 6

In one year a country generated 300 TWh of electricity. Renewables supplied (TWh): wind 81, solar 24, hydroelectric 9. What percentage of the electricity came from these renewables?

Answer %

Question 7

Is this energy resource renewable or non-renewable: coal?

• A. renewable
• B. non-renewable

Question 8

Why is a gas power station useful even in a grid with lots of renewables?

• A. It can be started up quickly to meet sudden demand
• B. It works without fuel
• C. Gas is renewable
• D. It produces no carbon dioxide

Question 9

In one year a country generated 250 TWh of electricity. Renewables supplied (TWh): wind 62.5, solar 15, hydroelectric 22.5. What percentage of the electricity came from these renewables?

Answer %

Question 10

Is this energy resource renewable or non-renewable: hydroelectric?

• A. renewable
• B. non-renewable

Question 11

Why is a gas power station useful even in a grid with lots of renewables?

• A. It produces no carbon dioxide
• B. Gas is renewable
• C. It can be started up quickly to meet sudden demand
• D. It works without fuel

Question 12

In one year a country generated 250 TWh of electricity. Renewables supplied (TWh): wind 67.5, solar 12.5, hydroelectric 20. What percentage of the electricity came from these renewables?

Answer %

Question 13

Is this energy resource renewable or non-renewable: wind?

• A. renewable
• B. non-renewable

Question 14

Why are large batteries and pumped hydro storage being built alongside renewables?

• A. To replace transmission lines
• B. To make renewables produce more carbon dioxide
• C. Because renewables need batteries to start
• D. To store surplus energy and release it when demand is high or generation is low

Question 15

In one year a country generated 300 TWh of electricity. Renewables supplied (TWh): wind 57, solar 36, hydroelectric 18. What percentage of the electricity came from these renewables?

Answer %

Question 16

Is this energy resource renewable or non-renewable: biofuel?

• A. renewable
• B. non-renewable