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What form of oxygen is found in the stratosphere?
In the stratosphere, oxygen primarily exists in the form of O2 molecules, just like in the Earth's atmosphere. This molecular oxygen plays a crucial role in the absorption of harmful ultraviolet radiation from the sun, helping to protect life on Earth.
Is oxygen part of the atmosphere?
Yes, oxygen is a major component of Earth's atmosphere, making up about 21% of the air we breathe. It is essential for most living organisms to survive through the process of respiration.
What ionosphere gases make up this region?
The ionosphere is composed mostly of atomic oxygen, molecular oxygen, and nitrogen gases. These gases become ionized by solar radiation, creating charged particles that affect radio wave propagation and other communication signals in the Earth's atmosphere.
Why is there oxygen on the earth and not on the planets?
Originally the earth had only a small amount of oxygen and abundant carbon dioxide. Primordial green algae first evolved to take advantage of this carbon dioxide and produced the oxygen as a by product. Over billions and billions of years, and as additional plant species evolved, the atmosphere was transformed into the oxygen rich environment we have today.
What is the proportion of oxygen in the atmosphere today?
About 21% of the Earth's atmosphere is oxygen.
