A growing source of heavy oil is ____, which is a mixture of clay, sand, water, and a combustible organic material called bitumen.
A) shale oil
B) tar sands
C) offshore oil
D) crude oil
E) liquefied petroleum gas

Question

Quizplus · Accepted Answer

The description matches the characteristics of tar sands, which is a type of heavy oil consisting of a mixture of clay, sand, water, and bitumen. A is incorrect because shale oil refers to oil extracted from shale rock formations. C and D are incorrect because they do not match the description provided. E is incorrect because liquefied petroleum gas is a different type of fossil fuel.

A Growing Source of Heavy Oil Is ____, Which Is