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Living things recycle oxygen in Earth's atmosphere through the process of photosynthesis. Plants and phytoplankton take in carbon dioxide and water, using sunlight to convert these molecules into oxygen and glucose. Animals then breathe in oxygen and release carbon dioxide through respiration, cycling oxygen back into the atmosphere for other organisms to use.
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What essentials for life are found in earths atmosphere?
The Earth's atmosphere contains oxygen, which is essential for respiration in most living organisms. It also contains carbon dioxide, which plants use for photosynthesis to produce food. Water vapor in the atmosphere is essential for the water cycle, which is vital for all forms of life on Earth.
What is the gas that makes up twenty one percent of earths atmosphere?
The gas that makes up 21% of Earth's atmosphere is oxygen. It is an essential component for most living organisms to breathe and is crucial for various biological and chemical processes on Earth.
What makes up 20 percent of the earths atmosphere?
balls
How do plants contribute to earths atmosphere?
Plants contribute to the Earth's atmosphere by releasing oxygen through the process of photosynthesis. This oxygen is essential for the survival of most living organisms, including humans. Additionally, plants help regulate the levels of carbon dioxide in the atmosphere by absorbing it during photosynthesis.
What is the approximate percent of oxygen by volume present earths lower atmosphere?
Oxygen makes up about 21% of Earth's lower atmosphere by volume.
How much of the earths atmosphere is made up of nitrogen and oxygen?
The earths atmosphere is made up of 78% nitrogen and 21% oxygen
What percent of earths atmosphere is oxygen?
97%
Is most of the earths atmosphere covered with oxygen?
no
Makes up 21 percent of the atmosphere?
Oxygen makes up 21% of the Earths atmosphere.
Is it true that sunlight make it possible to recycle oxygen in the atmosphere?
Sort of, it's plants that recycle carbon dioxide back into oxygen and they need sunlight to do this.
The primative earths atmosphere did not contain?
Free oxygen
The primitave earths atmosphere did not contain?
Oxygen gas
What is the major source of oxygen for the earths atmosphere is?
Plants
What gas was not part of early earths atmosphere?
oxygen
What are the primary gases found in earths atmosphere?
Nitrogen and oxygen,
Was the earths early atmosphere made up of mostly oxygen?
no
What describes the earths atmosphere?
mostly nitrogen with 21% oxygen
