Question # 1

The feeding level of an organism in an ecosystem is called.

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Food Web

Food chain

Trophical level

Secession level

The organisms upon whihc a redator feeds are called.

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Prey

Carnivores

Herbivores

Producers

Half of the increase in atmospheric carbon dioxide concentrations in the last.............. years has occured since 1980

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100

200

300

400

Energy of ............ is trapped as chemicla energy by producers.

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Moon

Atom

Sun

Earth

Carbon cycle and ............. cycle are teh processes in whihc these minerals circulate between the organisms and the environment.

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Hydrogen

Iodine

Oxygen

Nitrogen

Which is the solution of environmental problems.

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Reducing pollution

Plantation

Protection of endangered

All these

Organism in ecologicla communits interact with one anothe rin....... major ways.

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Two

three

Four

Five

A food chain starts from the..........

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Primary carnivores

Herbivores

Producers

Top carnivores

Which factor is responsible for ecological imbalance.

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Over hunting

Change in water supply

Migration

All these

All the food chains are joined together to form .....

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Food web

Ecologicla pyramid

Tropicla level

None of these

The phenomenon which doe snot lead to global warming.

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Green hous effect

Ozone depletion

Deforestation

Photosynthesis

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