What percentage of earths atmosphere is carbon dioxide

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Solution

The earth's atmosphere contains about 0.03% carbon dioxide.

Earth's atmosphere is a mixture of gases. Nitrogen is about 78% of the total gases in the earth’s atmosphere. Oxygen is the second most abundant gas. Oxygen is needed for survival, as living organisms required oxygen for breathing. It occupies almost 21% of the total gases in the atmosphere. Argon, carbon dioxide and many other gases form the remaining 1%. Carbon occupies about 0.03% of the earth’s atmosphere. Nowadays, the level of carbon-dioxide increases due to the burning of fossil fuels, deforestation, etc.

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Solution

Carbon dioxide (CO2 ) constitutes about 0.03% (300 parts per million) of the atmospheric gases. Whereas, nitrogen comprises 70% and oxygen 21% of the atmospheric gases. Other gases, such as water vapors, nitric oxide, carbon monoxide, and others, make up 100%.