Question

4. Ram has studied today that Ozone layer is very necessary for us. Can you tell why ozone layer is necessary for us?
a. it prevents ultra violet rays from reaching to earth
b. it helps in growth of vegetation on earth
c. it helps in synthesis of many gases
d. all of above​

Answer 1

Explanation:

c. it helps in synthesis of many gases

..!!!

Answer 2

Answer:

all of above.

Explanation:

because all this things are necessary for us