SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Hydrogen
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Carbon dioxide
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Nitrogen
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Oxygen
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Detailed explanation-1: -It’s a mixture of different gases. The air in Earth’s atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of other gases, too, such as carbon dioxide, neon, and hydrogen.
Detailed explanation-2: -’ Nitrogen makes up 78 per cent of the air we breathe, and it’s thought that most of it was initially trapped in the chunks of primordial rubble that formed the Earth. When they smashed together, they coalesced and their nitrogen content has been seeping out along the molten cracks in the planet’s crust ever since.
Detailed explanation-3: -Air is a mixture of gases. It contains about 78% nitrogen, 21% oxygen, 0.04% carbon dioxide, and very small amounts of other gases.
Detailed explanation-4: -The percentage of nitrogen in the air is 78%. Oxygen occupies 21% and argon occupies 0.9%.
Detailed explanation-5: -Nitrogen constitutes 78%78% of the atmospheric air and it is essential for the growth of plants.