Release of which among the following is the primary reason for depletion of the ozone layer?

Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere?

A

Chlorofluorocarbons

B

Nitrous oxide

C

Sulphur dioxide

D

Carbon dioxide

Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ?

A

Nitrous oxide

B

Carbon dioxide

C

Chlorofluorocarbon

D

Sulphur dioxide

Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate?

A

CO

B

SO₂

C

NO_x

D

CFC (chloro fluoro carbons)

_________ is the first country to have phased out the CFCs and HCFCs which are responsible for the depletion of the ozone layer.

A

Denmark

B

Germany

C

France

D

Spain

Depletion of ozone layer causes

A

Breast cancer

B

Skin cancer

C

Lung cancer

D

Blood cancer

CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones.

A

10²

B

10⁵

C

10⁹

D

10¹⁵

The depletion in Ozone layer is caused by ________ .

A

Nitrous oxide

B

Carbon dioxide

C

Chlorofluorocarbons

D

Methane

The depletion of ozone layer is due to

A

Chlorofluorocarbons

B

Carbon dioxide

C

Sulphur dioxide

D

Ethane

The depletion of Ozone layer is mainly due to

A

Volcanic eruptions

B

Aviation fuels

C

Radioactive rays

D

Chlorofluorocarbons

Depletion of ozone layer in the outer atmosphere may cause

A

Lung cancer

B

Skin cancer

C

Bronchitis

D

Heart disorder

Release of which among the following is the primary reason for depletion of the ozone layer?

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