Question # 1

Global warming causes rising of the sea level. The cause of global warming is.

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CO₂ gas.

SO₂gas.

NO₂gases.

O₃gas.

Infrared radiation emitted by the earth are absorbed by?

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CO₂,H₂O

N₂,O₂

CO₂,N₂

O₂,CO₂

Almost all air crafts fly in which reion?

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Troposphere

Stratosphere

Mesosphere

Thermosphere

The range of temperature in burning solid waste burning in incinerators is.

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650 ^oC - 1000 ^oC

650^oC - 11000^oC

1000^oC - 2000^oC

650^oC - 1000^oC

5000^oC - 1000^oC

Which is not a part of flue gas?

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Furans

Dioxins

HCl

H₂SO₄

Which one of the following is not air pollutants?

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N₂

CO

NO₂

O₂

On which base atmosphere is divided into four regions?

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Change in pressure

Change in rediation

Change in temperature

Change in volume

Catalytic converters convert.

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CO to CO₂

N₂ to NO

CO₂ to CO

N₂to NO₂

Carbon monoxide is harmful to us because.

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It paralyses the lungs.

It damages lungs tissues.

It reduces oxygen carrying ability of haemoglobin

It makes the blood coagulate.

Which one of the following gas has greater retaining capacity?

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O₂

N₂

CO

CO₂

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

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Precipitates

Residue

Crystals

All of them

Ozone is an allotropic form of

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Carbon

Oxygen

Sulphur

Phosphorous

Ozone layer is not found is

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Upper stratosphere

Mid stratosphere

Lower stratosphere

All of them

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