Question

choose the best answer.
the planet ______ is the only one with enough water on its surface to sustain life and allow water to exist in solid ice, liquid water, and gaseous states.
options: earth, jupiter, venus, mars

Explanation:

To determine the planet with enough water on its surface to sustain life and allow water in all three states (solid ice, liquid water, gaseous vapor), we analyze each option:

• Earth: Earth has oceans (liquid water), ice caps/glaciers (solid ice), and water vapor in the atmosphere (gaseous state). It supports life and has sufficient surface water for these states.
• Jupiter: Jupiter is a gas giant with no solid surface, so it cannot have liquid water or ice on a surface.
• Venus: Venus has extreme temperatures and a thick, toxic atmosphere, with no stable liquid water on its surface.
• Mars: Mars has ice (solid) and some water vapor, but liquid water is not stable on its surface due to low pressure and temperature, and the amount of liquid water is minimal compared to Earth.

Answer:

A. Earth