Question

Why oxygen is nessasary for life​

Answer 1

Answer:

without oxygen any living organism will not live in the earth

Answer 2

Answer:

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.