Question

what is anoxia ? please give me answer

Answer 1

The term anoxia means a total depletion in the level of oxygen, an extreme form of hypoxia or "low oxygen". 

Answer 2

Anoxia happens when Ur body or brain completely looses oxygen supply.It is aresult of hypoxia.This means a part of Ur body doesn't hv enough oxygen.
Low oxygen at high altitudes
significant blood loss