Take this simple test about Coal Formation and Petroleum

Read the question on the left and find the best match on the right. When you are finished, check your answer. If you have too many wrong, read about "Coal and Petroleum" in the introduction.
 

Why is coal a nonrenewable resource?

What percent of coal provides our energy needs today?

Finish this sentance.
Oil and gas form when .....

Oil and natural gas have ...

Which sentence is not a secondary recovery method?
Your score is