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Online Tests
Science 8th Class Urdu Medium Chapter 1 Online Test MCQs With Answers
Question # 1
The phenomenon which doe snot lead to global warming.
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Green hous effect
Ozone depletion
Deforestation
Photosynthesis
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Question # 2
A food chain starts from the..........
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Primary carnivores
Herbivores
Producers
Top carnivores
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Question # 3
Ozone is a layer of gases in ............. atmosphere of the Earth.
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Upper
Lower
Middle
Inner
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Question # 4
Energy of ............ is trapped as chemicla energy by producers.
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Moon
Atom
Sun
Earth
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Question # 5
Th graphical epresentation of tropihic relationship oforaganisms in an ecosystem is called.
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Food Chian
Ecological pyramid
Trophic level
Predation
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Question # 6
------------- gas is released when dead organisms are decomposed by the decomposers.
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Oxygen
Carbon dioxide
Nitrogen
Hydrogen
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Question # 7
Organism in ecologicla communits interact with one anothe rin....... major ways.
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Two
three
Four
Five
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Question # 8
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
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Question # 9
Consumers that actively hunt other organism are called.
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Prey
Competitor
Predator
Symbiont
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Question # 10
The organisms upon whihc a redator feeds are called.
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Prey
Carnivores
Herbivores
Producers
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