Multiple choice

Oil and natural gas produce CO2 and H2O vapor which are ________.

  1. greenhouse gases

  2. acid rain

  3. nontoxic

  4. combustion fuels

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbon dioxide (CO2) is a primary greenhouse gas that traps heat in the atmosphere, contributing to global warming. While water vapor is also a greenhouse gas, the context of fossil fuel combustion usually highlights CO2.