Question

the humans has required O² ,
bt how is providing N2 ?
#nuture
#krma
# the humans fault

Answer 1

Answer:

To burn our food, we need oxygen, which we get from breathing in the air around us. ... In fact, air's mostly made of nitrogen. This has a very important job. Nitrogen slows down the burning process so you get enough energy through the day, bit by bit.

Explanation: