Question # 1

Which type of pollutants are responsible for changing weather.

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Soil pollutants

Water pollutants

Air pollutants

all of the above

Which gas is also known as life gas for plants.

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CO

O2

CO2

NO2

Which of the following is a poisonous gas.

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Ozone

Oxygen

Nitrogen

Carbon di oxide

How many percentage of all available water use by humans.

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2%

3%

4%

1%

Which is not a characteristics of SO2?

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It is colourless gas

It has irritating smell

It does not form sulphuric acid

It causes suffocation

Forest fires and burning of wood emit.

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O2

Cl2

N2

CO2

How many tree are there in the world.

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3.21 trillion

3.21 million

3.04 trillion

3.04 million

Catalytic converters convert.

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CO to CO2

NO to N2

CO2 to CO

N2 to NO2

A group of gases hat maintains temperature of atmosphere is

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Oxygen and water vapours

Nitrogen and oxygen

Carbon di oxide and water vapours

Nitrogena nd carbon dixoide

99% of atmosphere consists of

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O2 and CO2

N2 and H2

N2 and O2

N2 and CO2

In which area there is a greater possibility of acid rain.

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Around water bodies

Around industrial area

Around big cities

Around village

Carbon monoxide is harmful to us because.

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It paralyses the lungs

It reduces oxygen carrying ability of haemoglobin

It damages lungs tissues

It makes the blood coagulate

Which is not a poisonous gas.

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CO

Ozone

Carbon di oxide

All of these

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