Question

question 10 of 10
what is a major drawback of using fossil fuels?
a. they release oxygen when burned.
b. they cool the planet.
c. they are flammable.
d. they release greenhouse gases.

Explanation:

Fossil fuels release greenhouse gases like CO₂ when burned. This contributes to global warming. Option A is incorrect as they consume oxygen. Option B is wrong as they warm the planet. Option C (flammability) is a property but not a major environmental drawback like greenhouse gas release.

Answer:

D. They release greenhouse gases.