Question

What happens if the percentage of oxygen in the air reaches to 70%?
Answer.
If any substance catches fire, it will become difficult to extinguish the fire, as oxygen supports combustion.

Answer 1

Answer:

Yes your answer is correct ❤️

Answer 2

Explanation:

first of all that isn't possible

but still it happened then there would be fire everywhere

and plants will face a lot of problems also fixing of nitrogen in roots of plants will not take place