cycles in nature

Plants and animals release _________ as a product of respiration.

water falling from clouds

cycle in which water moves through the environment

water vapor turning into water

water turning into water vapor

cycle in which a gas in the air is fixed into a form that plants can use

During ______, plants use sunlight, water, and carbon dioxide to make their own food.

Ammonia is a usable form of _______ that bacteria use in the ______ cycle.