Question

depletion of ozone layer​

Answer 1

Question:

•Depletion of ozone layer ?

Answer:

Depletion of ozone layer :-

★ Ozone layer is found between 20° to 26° km above the sea level .

★ It is a deadly poison.

★ It shields the surface of the Earth from ultraviolet rays .

★ The thickness of ozone is 0.25 cm above the equator and 0.40 cm above the poles.

★ It damage to various organisms and cause skin cancer, cataract , damage immune system and inhabit photosynthesis.

★ CFCs halogens , methane , nitrogen oxide

$N_{2}$

are responsible to damage the ozone layer.

★ At higher level , UV rays split some molecules of oxygen into free oxygen free oxygen that combine with molecules of oxygen forming ozone .

$o_{2} \: \frac{uv \: rays}{lightning \: < electric \: park > } o + o \: < nascent \: oxygen >$

$o_{2} + o \: \frac{oxidation}{} o_{3} \: < ozone >$

★★★

Answer 2

Answer:

$\huge \bf \green{hii}$

Ozone depleting substances are chemicals that destroy the earth's protective ozone layer. They include: chlorofluorocarbons (CFCs) halon.