Question

which is associated with low humidity?
dry air
warm air
rainforest
coastal area

Explanation:

Humidity refers to the amount of water vapor in the air. Dry air has less water vapor, so it is associated with low humidity. Warm air can hold more moisture (higher humidity when saturated), rainforest has high moisture (high humidity), and coastal area has access to water (higher humidity due to evaporation).

Answer:

dry air