Question # 1

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

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

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Moon

Atom

Sun

Earth

------------- through the food chain is one of the most important functionsof an ecosystem in maintaining balance of nature.

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Waisting of energy

Destroy fo energy

Transfer of energy

Produce of energy

Consumers that actively hunt other organism are called.

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Prey

Competitor

Predator

Symbiont

Which factor is responsible for ecological imbalance.

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Over hunting

Change in water supply

Migration

All these

A relationship where two species live together closely is called

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Symbiosis

Predation

Competitor

None of these

The energy of the Sun in traped as chemical energy by.

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Tertiary consumers

Primary consumers

Producers

Secondary consumers

During respiration by the animals, whihc gas is released into the atmosphere.

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Nitrogen

Oxygen

Carbon Di oxide

Hydrogen

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

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Primary carnivores

Herbivores

Producers

Top carnivores

Th graphical epresentation of tropihic relationship oforaganisms in an ecosystem is called.

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Food Chian

Ecological pyramid

Trophic level

Predation

During the combustion of fossil fuel. Which gas is ener the atmosphere.

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Nitrogen

Oxygen

Carbon di oxide

Hydrogen

The phenomenon which doe snot lead to global warming.

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Green hous effect

Ozone depletion

Deforestation

Photosynthesis

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

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Two

three

Four

Five

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

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Food Web

Food chain

Trophical level

Secession level

Which is the solution of environmental problems.

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Reducing pollution

Plantation

Protection of endangered

All these

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

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Food web

Ecologicla pyramid

Tropicla level

None of these

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