Two major sources of energy,coal and oil shale,are considered ________ sedimentary rocks.

Question

Quizplus · Accepted Answer

Coal and oil shale are both formed from the organic remains of plants and animals that have been compacted and subjected to high pressures and temperatures over time, making them organic sedimentary rocks. Clastic sedimentary rocks are formed from the accumulation of rock fragments or sand and gravel, while biochemical sedimentary rocks are formed from the accumulation of shells or other organic debris. Chemical sedimentary rocks are formed from mineral precipitation out of solution.

Two Major Sources of Energy,coal and Oil Shale,are Considered ________