Question # 1

The main causes of depletion of ozone layer is

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oxygen

hydrogen

chlorofluorocarbon

hydrocarbon

The height of stratosphere above earth's is surface is:

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18 km

25 km

50 km

100 km

How much population of Pakistan depends on agriculture

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90%

80%

60%

50%

Ozone is a gas present in.

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Troposphere

Stratosphere

Upper stratosphere

Meso sphere

The height of troposphere above earth's surface is

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10 km

18 km

20 km

40 km

Meat and eggs are rich in

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carbohydrates

proteins

glucose

vitamin

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

It is used in microprocessor of computer

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chromite

aluminium

silicon

iron

The height of Stratosphere form sea level is.

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50 km

55 km

60 km

45 km

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