The 4 processes that use atmospheric oxygen are:
1. Respiration: This process occurs in organisms, such as humans and animals, where oxygen is taken in and used to break down carbohydrates and release energy. The oxygen is used to convert glucose into carbon dioxide and water through a series of chemical reactions, releasing energy in the process.
2. Combustion: Combustion is a chemical process that involves the rapid oxidation of a fuel in the presence of oxygen. Also known as burning, this process releases heat and light energy. For example, when wood or fossil fuels like gasoline and coal are burned, the carbon in these substances combines with oxygen from the air to produce carbon dioxide and water vapor, releasing energy in the form of heat and light.
3. Oxidation: This process occurs when substances react with oxygen, leading to the transfer of electrons and resulting in the formation of new compounds. Oxidation reactions commonly occur in many chemical reactions, such as rusting of iron or the burning of magnesium. In these reactions, oxygen is often one of the reactants that combines with other elements or compounds to form oxides.
4. Photosynthesis: Photosynthesis is a process that occurs in plants, algae, and some bacteria. During this process, plants use sunlight, water, and carbon dioxide to produce glucose and oxygen. The oxygen produced through photosynthesis is released into the atmosphere and is essential for the survival of many organisms, including those that rely on respiration to obtain energy.
Describe the 4 processes that use atmospheric oxygen.
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