Question # 1

What percentage of nitrogen and oxygen is in the atmosphere.

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69%

79%

9%

89%

What gas is the major constituent of troposphere?

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Nitrogen

Oxygen

Hydrogen

Both a and b

Iron and steel structure are damaged by.

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Carbon monoxide

Sulphur dioxide

Methane

Carbon dioxide

The earth atmosphere is getting hotter because of :

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SO₂

O₃

CO₂

CO

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

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Precipitates

Residue

Crystals

All of them

How much amount of sunlight reaches up to earth and absorbed:

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26%

32%

50%

18%

Which gas is also known as life gas for plants.

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CO

CO₂

O₂

NO₂

Which gas acts as a glass wall of a green house?

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Oxygen

Carbon dioxides

sulphur dioxide

Hydrogen

Our planet earth consists of ____________ natural Spheres.

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1

4

6

8

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 gas is emitted due to volcanic eruption?

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CO₂

SO₃

NO₂

H₂

In the troposphere (lowest layer), the temperature decreases form 17°C to;

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-58°C

-93°C

-61°C

-49°C

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