Which of the following states correctly describes the process of photosynthesis and cellular respiration

A. respiration creates a high level of carbon dioxide in the atmosphere

B. photosynthesis and respiration keep the levels of oxygen and carbon dioxide fairly constant in the atmosphere

C. photosynthesis creates a high level of oxygen in the atmosphere

B. photosynthesis and respiration keep the levels of oxygen and carbon dioxide fairly constant in the atmosphere.

Explanation:

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.