Mariareginabuenafe04idn
Answered

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1. What makes up the gaseous part of the earth?
2. How many percent is oxygen?
3. What is the most abundant element in the earth's atmosphere?
4. What particular gas in the atmosphere is inhaled for breathing specifically by animals and humans?​

1 What Makes Up The Gaseous Part Of The Earth2 How Many Percent Is Oxygen3 What Is The Most Abundant Element In The Earths Atmosphere4 What Particular Gas In Th class=

Sagot :

Ivanvansy14idn
1. When the Earth first formed, the atmosphere was composed of the following: ■ dust clouds ■ gases ■ water vapour from volcanic eruptions. Later, the atmosphere also included oxygen from photosynthesis. The Earth's atmosphere is now a mixture of gases called air.
2. 21 percent oxygen - 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.
3. NITROGEN - The most abundant naturally occurring gas is Nitrogen (N2), which makes up about 78% of air. Oxygen (O2) is the second most abundant gas at about 21%. The inert gas Argon (Ar) is the third most abundant gas at .
4. OXYGEN, when we take a breath, we pull air into our lungs that contains mostly nitrogen and oxygen. When we exhale, we breathe out mostly carbon dioxide. All aerobic creatures need oxygen for cellular respiration, which uses the oxygen to break down foods for energy and produces carbon dioxide as a waste product.
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