Question

Which gases are harmful to the ozone layer?Why?

Answer 1

Answer:

• The main substances include chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), halons, carbon tetrachloride, methyl chloroform and methyl bromide.

• The damage to the ozone layer caused by each of these substances is expressed as their ozone depletion potential (ODP).

Answer 2

Answer:

The gases are harmful to ozone layer which includes

• cholorofluorocarbon (CFCs)
• hydrochlorofluorocarbon (HCFCs)
• halons
• carbon tetrachloride &

methyl bromide.

The damage to the ozone layer caused by each of these substances is expressed as their ozone depletion potential (ODP)