Question

question 23 of 30
what is one disadvantage of using fossil fuels?

a. they are inexpensive and allow countries to increase their standards of living.

b. they can be replenished in a short time, so people think they will never run out.

c. they cannot be replaced with other energy sources.

d. they produce pollutants, including greenhouse gases.

Explanation:

• Option A describes an advantage (inexpensive, improves living standards), not a disadvantage.
• Option B is incorrect because fossil fuels are non - renewable and take millions of years to form, so they can't be replenished quickly.
• Option C is wrong as there are alternative energy sources like solar, wind, etc., that can replace fossil fuels.
• Option D is correct because when fossil fuels are burned, they release pollutants such as greenhouse gases (like carbon dioxide) which contribute to climate change and air pollution.

Answer:

D. They produce pollutants, including greenhouse gases.