The only substance found naturally in the lower atmosphere that can exist as a solid, a liquid, and a gas is ____.

Question

Quizplus · Accepted Answer

Water is the only substance found naturally in the lower atmosphere that can exist as a solid (ice), a liquid (water droplets), and a gas (water vapor). Carbon dioxide (A) can exist as a gas or a solid (dry ice) but not a liquid in the lower atmosphere. Methane (C) and ozone (D) can exist as a gas but not as a solid or liquid in the lower atmosphere.

The Only Substance Found Naturally in the Lower Atmosphere That