Question # 1

Which pollutant is responsible for changing weather?

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Air pollutant

Water pollutant

Soil pollutant

All of them

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.

Which one of the following is not a greenhouse Effect?

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Increasing atmosphere temperature.

Increasing food chains

increasing flood risks

Increasing sea-level

Which metal present in acid rain affect the aquatic life by clogging fish gills?

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Lead

Chromium

Aluminium

Mercury

Ozone id beneficial for us as it:

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absorbs infrared radiations

absorbs ultraviolet radiation

absorbs chlorofluorocarbons

absorbs air pollutants

Which pollutant is not found in car exhaust gases?

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CO

O₃

NO₂

SO₃

What gas is the major constituent of troposphere?

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Nitrogen

Oxygen

Hydrogen

Both a and b

Building are being damaged by acid rain because it attacks.

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Calcium sulphate

Calcium nitrate

Calcium carbonate

Calcium oxalate

Which one of these pollutants are not found in car exhaust fumes?

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CO₂

O₃

NO₂

SO₂

The solid particle deposit on the filter paper during filtratin is called.

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Precipitates

Residue

Crystals

All of them

Ozone layer is not found is

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Upper stratosphere

Mid stratosphere

Lower stratosphere

All of them

Mesophere extend forms 50 km to:

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50 km

12 km

60 km

85 km

How many percentage of sunlight is absorbed by atmosphere gases.

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12%

18%

24%

30%

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