Question # 1

Consumers that actively hunt other organism are called.

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Prey

Competitor

Predator

Symbiont

A symbiotic relationship in whihc both speciesl get benefit is called.

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Commensalism

Hebitate

Mutualism

Symbiosis

------------- 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

Ozone is a layer of gases in ............. atmosphere of the Earth.

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Upper

Lower

Middle

Inner

A relationship where two species live togetehr closely is called.

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Mutualism

Commensalism

Symbiosis

Hebitate

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

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Primary carnivores

Herbivores

Producers

Top carnivores

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

Which factor is responsible for ecological imbalance.

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Over hunting

Change in water supply

Migration

All these

The phenomenon which doe snot lead to global warming.

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Green hous effect

Ozone depletion

Deforestation

Photosynthesis

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

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Nitrogen

Oxygen

Carbon di oxide

Hydrogen

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

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Moon

Atom

Sun

Earth

------------- gas is released when dead organisms are decomposed by the decomposers.

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Oxygen

Carbon dioxide

Nitrogen

Hydrogen

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

The poisonous and harmsful substances which make the air unfavorable for life are called.

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Solid pollutant

Air pollutant

Water pollutant

Acid Rain

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

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