Answer:
The atmosphere is full of water
Evaporation and transpiration change liquid water into vapor, which ascends into the atmosphere due to rising air currents. ... Clouds are, of course, the most visible manifestation of atmospheric water, but even clear air contains water — water in particles that are too small to be seen.
Answer:
Autotrophs store chemical energy in carbohydrate food molecules they build themselves. Food is chemical energy stored in organic molecules. Food provides both the energy to do work and the carbon to build bodies. Because most autotrophs transform sunlight to make food, we call the process they use photosynthesis.
Hoped This Helped!
The primary function of the respiratory system<span> is the exchange of oxygen, which is needed by the body's cells, for carbon dioxide, which is produced as a waste product of cellular metabolism.</span>
