Question

what would cause water to turn from a gas to a liquid?
a decreasing the waters temperature
b increasing the waters temperature
c increasing the waters mass
d none of the above

Explanation:

The process of water changing from gas (water vapor) to liquid is condensation. Condensation occurs when the temperature of the gas decreases, causing the gas molecules to lose energy, slow down, and come together to form a liquid. Increasing temperature would cause evaporation (liquid to gas), and changing mass doesn't affect the phase change of water between gas and liquid. So decreasing the water's temperature causes condensation (gas to liquid).

Answer:

a. decreasing the water's temperature