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Why do you say 70 to 80 percent of the oxygen in the atmosphere comes from marine plants in the ocean and you also say 70 percent comes from rain forests?
Wiki User
∙ 14y ago
About 70% of our oxygen is indeed produced by marine plants.
The statement about the rain forests is wrong, they are now known to be essentially oxygen neutral, with little or no net oxygen production at all. That's not saying, it isn't worth saving them.
Wiki User
∙ 14y ago
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What is made up of 62 percent Hydrogen 24 percent Oxygen 12 percent Carbon and 1 percent Nitrogen?
The atmosphere.
Its composition is 78 percent nitrogen 21 percent oxygen and 1 percent other?
The earth's atmosphere at sea level.
What percent of O and N can you find in the atmosphere?
78% Nitrogen 21% Oxygen
Ninety nine percent of atmosphere is composed of what?
The nitrogen and oxygen in Earth's atmosphere together account for a speck more than 99% of it..
How is the oxygen in the atmosphere replaced?
Through oxygen cycle. Humans and animals take in oxygen and give out carbon dioxide. Plants take in carbon dioxide and give out oxygen. This ways the oxygen is circulated in the atmosphere.
What percent of the atmosphere is oxygen'?
21% of the atmosphere is oxygen.
What percent of oxygen is present in your atmosphere?
40 percent
What is the amount of oxygen in the atmosphere?
Air is 20.5 percent oxygen.
What percent of earths atmosphere is oxygen?
97%
Is 80 percent of earth's atmosphere oxygen?
no
What is its atmosphere is about 20 percent oxygen?
The Earth
What composes twenty percent of earth's atmosphere?
Oxygen composes of twenty-one percent of Earth's Atmosphere.
What percent of the Martian atmosphere is oxygen?
Mars' atmosphere contains 0.13% oxygen. Over 95% of the atmosphere on Mars is carbon dioxide.
What is the percentage for oxygen in the atmosphere?
roughly 21 percent.
The atmosphere is almost 80 percent what?
Nitrogen
What is 21 percent of Earth's atmosphere composed of?
Oxygen.
What gas is 21 percent of the Earth's atmosphere?
Oxygen
