Question # 1

Temperate deciduous forest are located in Pakistan at.

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Chilas

Mian wali

Shogran

Sindh

What would be expected to happen if all the nitrogen-fixing organisms ceased to exist?

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There would be no significant change in number of animals

The total number of biomass would be reduced

All organisms would die out

The nitrogen level of the atmosphere would be increase

A dominant plant of the deciduous forest is the

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Cactus

Acacia

euphorbia

Taxusbaccata

Here, light is insufficient to support photosynthesis.

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Littoral zone

Profundal zone

Limetic zone

Photoplankton zone

The total energy from the sun is happened by the producers in an ecosystem is about?

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20 %

10 %

5 %

1 %

Air is being polluted rapidly due to

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Industrialization

Automobiles

Sewage

Both a & b

What will be the age of willow tree 10 centimeter long and 70 centimeter in diameter

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40 years

50 years

60 years

70 years

The productivity of aquatic ecosystem is determined by light and

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CO2

Temperature

Nutrients

Water

Chilas has major terrestrial ecosystem.

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Deciduous forest

Alpine Forest

Grass land

Tundra

Ecosystem present on land or soil is called.

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Terrestrial

Atmosphere

Lithosphere

Both a and c

The productivity can be indicated by.

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Consumption of CO2

Consumption of O2

Evolution of CO2

Evolution of N2

Each nuclear power station only can last for about

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10 years

20 years

30 years

40 years

The biome, which has very fertile soil, rich in organic matter with maximum water holding capacity is.

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Alpine forest

Grassiland

Desert

Temperate deciduous forest

Perhaps the most fragile of all the biomes, because of its short growing season is.

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Tundra

Desert

Grass land

Temperate deciduous forest

At the time of independence in 1947 the population of pakistan was

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10 m

20 m

25.7 m

32.5 m

In which type of ecosystem in the smallest fraction of nutrients present in soil.

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Forest

Savanna

Grass land

Desert

Northern coniferous forest are called.

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Alpine

Boreal

Taiqa

Prairles

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