Question

what are the reasons of which of the level of oxygen has decreased in our country?​

Answer 1

Answer:

DUE TO DEFORESTATION.

LESS NUMBER OF TREES.

INCREASE IN POPULAtiON THUS MORE INHALATION OF O2

Explanation:

Answer 2

Answer:

Due to deforestation trees are cut down.Trees are the only source of oxygen and if they are cut down the oxygen level in our country.