Question # 1

The rock from which minerals can be obtained are called:

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silicons

ores

metals

gem stone

Smog can cause.

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Eye diseases

Lung diseases

Cancer

Typhoid

Teh total number of persons living in an area is called.

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Species

Population

Community

habitat

The percentage of oxygen in Air is

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78%

21%

0.04%

33%

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

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130.5 million

13.5 million

135 million

0.135 million

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

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90%

80%

60%

50%

The proportion of carbon dioxide in air is.

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40 percent

0.4 percent

0.04 percent

0.004 percent

The temperature in measophere can be low as.

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-150 ^oC

-100^oC

100 ^oC

-200 ^oC

The height of Stratosphere form sea level is.

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50 km

55 km

60 km

45 km

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