Oxygen-+Kevin+Ghozali

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Oxygen is a colorless, odorless, tasteless gaseous chemical element, which appears in great use on Earth, which is trapped by the atmosphere. Many people are familiar with oxygen as the main gas because it is the main source of life for most living things and without it, they will die. Oxygen can be found in nature.=====

Uses of Oxygen
-The most important use of oxygen is for breathing. Animals require oxygen in the air (or water) to live. -It is also used for oxidation reactions-one of the examples is burning. Fire requires oxygen to burn. Some of the fir extinguishers works by preventing any oxygen pass through for the burning material. If there is more oxygen, the fire will be bigger and hotter.

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Oxygen don’t have a hazardous effect on animal but a big hazardous effect on environment by allowing fire to burn, which the smoke to the air which can cause a hole in the ozone layer, which cause more heat from the sun to pass through and melting ice from the earth causing it to a natural disaster.=====

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9. Excited oxygen is responsible for the bright red, yellow-green colors on the aurora.=====

10.Oxygen was the atomic weight average/standard until 1961 AD when it was replaced by one of the elements called Carbon 12.
Bibliography