Question

what is ozone depletion???​

Answer 1

$\bf\huge\underline{Answer :-}$

• The depletion of the ozone layer by harmful gases like CFCs released from refrigerators, ACs, Coolants etc. is known as ozone depletion.
• Stratosphere contains much of the ozone in the atmosphere.
• It absorbs the harmful ultraviolet radiation from the sun.
• It behaves like a shield that prevents radiation from passing the earth's surface.
• One molecule of CFC destroys one lakh O3 molecules in the stratosphere.
• This ultraviolet light can cause biological damage like skin cancer, damages tissues of eyes and plant tissues.

Answer 2

Answer:

Ozone depletion, gradual thinning of Earth’s ozone layer in the upper atmosphere caused by the release of chemical compounds containing gaseous chlorine or bromine from industry and other human activities. The thinning is most pronounced in the polar regions, especially over Antarctica. Ozone depletion is a major environmental problem because it increases the amount of ultraviolet (UV) radiation that reaches Earth’s surface, which increases the rate of skin cancer, eye cataracts, and genetic and immune system damage. The Montreal Protocol, ratified in 1987, was the first of several comprehensive international agreements enacted to halt the production and use of ozone-depleting chemicals. As a result of continued international cooperation on this issue, the ozone layer is expected to recover over time.