____________ is/are an example of alternative hydrocarbon sources.
A)Gas hydrate
B)Tar sands
C)Oil shale
D)All of the above are correct.

Question

Quizplus · Accepted Answer

Gas hydrate, tar sands, and oil shale are all alternative hydrocarbon sources. Gas hydrates are solid deposits of methane gas and water formed under high pressure and low temperature on the ocean floor. Tar sands are a mixture of sand, water, clay, and bitumen (a heavy, viscous oil). Oil shale is a fine-grained sedimentary rock containing kerogen, a precursor to oil. They are considered alternative sources because they are more difficult and costly to extract and produce than conventional oil and gas.

____________ Is/are an Example of Alternative Hydrocarbon Sources