Energy is released by the food organisms consume through the process of cellular respiration during this process oxygen is consumed and is produced and released into the atmosphere.

Carbon dioxide

Explanation:

Cellular respiration is given by the equation; glucose + oxygen  carbon dioxide + water + energy

C6H12O6 + 6O2 --> 6CO2 + 6H2O + 36 or 38 ATP

It has three phases; glycolysis that occurs in the cytoplasm of the cell then Krebs cycle that occurs in the matrix mitochondria then electron transport chain that occurs in the intermembrane space of the mitochondria.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.