Question

which statement describes a disadvantage of using natural gas as an energy source?
it is expensive to use.
it is hard to stop using.
it is a renewable resource.
it is scarce in some parts of the world.

Explanation:

• "It is expensive to use": Natural gas is generally a cost-effective energy source compared to many alternatives, so this is incorrect.
• "It is hard to stop using": While societies can face challenges transitioning from any energy source, this is not a direct disadvantage specific to natural gas itself.
• "It is a renewable resource": Natural gas is a fossil fuel, a non-renewable resource, so this statement is factually wrong.
• "It is scarce in some parts of the world": Natural gas reserves are geographically unevenly distributed; many regions have limited or no local reserves, making this a valid disadvantage as it can lead to supply issues and reliance on imports.

Answer:

D. It is scarce in some parts of the world.