The Earth’s Atmosphere is a mixture of gases called air. The amount of each type of gas in air is about 78% nitrogen, 21 % oxygen, and 1% of other gases, including carbon dioxide, argon, and water vapor.
Nitrogen, oxygen, and carbon dioxide are part of the life processes of plants and animals.
Nitrogen Cycle
Plants are an important part of the nitrogen cycle, the process by which nitrogen is converted between it various forms.
Plants take in nitrogen from the atmosphere so that it becomes part of the plant’s structure.
Plants release nitrogen when the plant or parts of the plant die and decay.
Respiration Process: Oxidation of glucose to produce chemical energy in the form of ATP.
Animals inhale oxygen and exhale carbon dioxide + water vapor
Photosynthesis: A food producing process in which glucose is one of the products.
Plants take in carbon dioxide and release oxygen.
Big Book of Science Experiments
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