Meteorology
Oxygen is a colorless, odorless gas that is essential for the respiration of most living organisms and constitutes about 21% of Earth's atmosphere. It plays a crucial role in various chemical processes, including combustion and photosynthesis, which are vital for life on Earth. Understanding oxygen's presence and behavior in the atmosphere helps us grasp its importance in both the composition of air and the layers that make up our planet's atmosphere.
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