Question

Which is a drawback to the use of oil shale to produce energy

Answer 1

it add to the pollution to the air and the waste is throw into the ocean

Answer 2

Step-by-step explanation:

Shale oil extraction is a very expensive process. Mining and processing techniques are very costly. Mining of shells of rock have environmental damaging effect. Mining techniques also releases carbon dioxide, so increases global warming. Mining of shale oil also requires large amount of water and it can also contaminate ground water. Waste disposal is also expensive.