Question # 1

Effects of ozone depletion are following except the one.

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Increases infectious diseases

Increases crops production

Can cause skin cancer

Can cause climatic changes.

Ozone id beneficial for us as it:

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absorbs infrared radiations

absorbs ultraviolet radiation

absorbs chlorofluorocarbons

absorbs air pollutants

How many atmospheric temperature increase every year due to accumulation of CO₂ in air.

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0.03 ^oC

0.05 ^oC

1^oC

2^oC

Infrared radiation emitted by the earth are absorbed by?

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CO₂,H₂O

N₂,O₂

CO₂,N₂

O₂,CO₂

PAN stands for

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Poly aniline nitrate

Proxy acetyl nitrate

Poly acetyl nitrite

Proxy acetyl nitrite

Ultraviolet radiations can causes.

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Hepatitis

Asthma

Skin cancer

Night blindness

Which is not a part of flue gas?

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Furans

Dioxins

HCl

H₂SO₄

A pollutant is a waste material that pollutes.

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Air

Water

Soil

All of them

By the increase in the concentration of CO₂ in air.

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Decrease in heat energy

Increase in heat energy.

Heat energy remains same

None of them

Cause of global warming is :

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CO₂ gas

SO₂gas

NO₂gas

O₂gas

The gas used by animals to perform respiration.

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O₂

N₂

SO₂

Cl₂

pH of acid rain is:

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7-5

6-7

1-2

4-5

Building are being damaged by acid rain because it attacks.

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Calcium sulphate

Calcium nitrate

Calcium carbonate

Calcium oxalate

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