Question

Name any chemical that causes depletion of ozone layer.

Answer 1

Ozone layer:

1. Ozone is highly concentrated in the stratosphere layer (10 - 50 km above sea level).
2. This layer is called the ozone layer or ozonosphere.

Depletion of ozone layer:

1. Human activities have led to the loss of this balance leading to thinning of the ozone layer.
2. The major threat to the ozone layer is from chemical substances like:

1. Chlorofluorocarbons (CFCs)
2. Halogens
3. Hydrochlorofluorocarbons (HCFCs)