Question # 1

The percentage of carbon dioxide in Air is:

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40%

0.4%

0.04%

33%

At present average annual population growth rate in Pakistan is 2.6 percent. In how many year it will become double?

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47 year

37 year

17 year

27 year

Ozone is a gas present in.

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Troposphere

Stratosphere

Upper stratosphere

Meso sphere

About ........... percent population of Pakistan is dependent upon agriculture.

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90%

80%

60%

50%

The height of Stratosphere form sea level is.

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50 km

55 km

60 km

45 km

Where the ozone make a protective layer?

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Troposphere

Stratosphere

Mesosphere

Thermosphere

Ultra violet radiations can cause.

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Cancer

Eye disease

None

Both a and b

Atmosphere is made of................. percent oxygen.

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23

25

21

30

Pakistan's population is 1998 was..........

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130.5 million

13.5 million

135 million

0.135 million

The main causes of depletion of ozone layer is

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oxygen

hydrogen

chlorofluorocarbon

hydrocarbon

---- types of fishes are found in Pakistan.

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700

600

800

650

The proportion of carbon dioxide in air is.

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40 percent

0.4 percent

0.04 percent

0.004 percent

The rock from which minerals can be obtained are called:

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silicons

ores

metals

gem stone

------------------ is one of oldes sources of heat.

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Petroleum

natural gas

None

Coal

Meat and eggs are rich in

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carbohydrates

proteins

glucose

vitamin

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