Question

question 22
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choose the statement that accurately describes natural gas.
this liquid energy source has a number of different uses, from fuel to plastics.
it is widely used to heat water boilers, the steam from which drives a turbine that produces electricity.
fracking has expanded access to methane, which occurs naturally in underground pockets.
the use of this energy source relies upon mined minerals and heat from radioactive decay.

Explanation:

Natural gas is mainly composed of methane. Fracking has enabled greater access to methane that exists in underground pockets. The first option describes a liquid energy source (like oil), the second option can describe coal - fired or other steam - based power generation more generally rather than specifically natural gas, and the fourth option describes nuclear energy.

Answer:

C. Fracking has expanded access to methane, which occurs naturally in underground pockets.