Question # 1

The conversion of ammonia to nitrates is carried out by soil bacteria. This process is called.

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Nitrification

Denitrification

Nitrogen fixation

Assimilation

The type of symbiotic relationship in which one member get benefit and other is harmed is called.

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Parasitism

Mutualism

Commensalism

Predation

The major process that brings carbon from atmosphere into living world is:

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Photosynthesis

Respiration

Both a and b

None of these

Biosphere surrounding the Earth is about.

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17 KM

18 KM

19 KM

20 KM

Abiotic component of the ecosystem is.

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Producers

Consumers

Decomposers

Light

Primary source of energy for all ecosystem is.

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Electricity

Sun

Fire

Nutrients

Endoparasite is:

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Leech

Lices

Ascaris

Mosqitto

The study of the relationship between organisms and their environment called.

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Biology

Microbiology

Ecology

Genetics

All Ecosystem of the world join and makes.

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Biosphere

Heterosphere

Geosphere

Hydrosphere

Which of the following air pollutant react with water in atmosphere producing acid rain?

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Hydrocarbons fluorine

Flyash, soot

chlorine , smoke

Sulphur dioxide, Nitrogen oxide.

Habitat destruction can result in a loss of:

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Species

Population

Community

Ecosystem

R-2 means.

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Reduce

Recycle

Renewable

Reuse

At the end of a long food chian the energy will be.

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Will more

As same as at start

Will less

Zero

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