Question

1. condensation changes

a liquid into a gas
a gas into a liquid

Explanation:

Condensation is the process where a gas changes its state to a liquid due to a decrease in temperature or an increase in pressure. For example, when warm, moist air meets a cold surface, water vapor in the air condenses into liquid water droplets. Evaporation is the opposite process, where a liquid changes into a gas.

Answer:

a gas into a liquid