Question

What is the role of oxygen in air​

Answer 1

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• Oxygen plays a critical role in respiration, the energy-producing chemistry that drives the metabolisms of most living things. We humans, along with many other creatures, need oxygen in the air we breathe to stay alive. Oxygen is generated during photosynthesis by plants and many types of microbes.

Answer 2

• The energy-producing process that drives the metabolisms of most living organisms, respiration, relies heavily on oxygen.
• To keep alive, we humans, like many other animals, require oxygen in the air we breathe.
• Plants and many other types of microorganisms produce oxygen during photosynthesis.
• Plants both consume and create oxygen during their respiration (via photosynthesis).
• Ozone is a three-atom oxygen molecule (O3).
• The stratosphere's ozone helps by filtering most of the Sun's damaging UV rays, but the troposphere's ozone is a dangerous pollutant.