question number 16,17,20
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carbon monoxide and sulphur dioxide.
Radiation and deforestation,pollution.
ozone is above stratosphere.
ozone hole is nothing but a hole which allows direct uv rays which is harmful to living beings.
Radiation and deforestation,pollution.
ozone is above stratosphere.
ozone hole is nothing but a hole which allows direct uv rays which is harmful to living beings.
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