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Online Tests
Science 8th Class English Medium Chapter 1 Online Test MCQs With Answers
Question # 1
A symbiotic relationship in whihc both speciesl get benefit is called.
Choose an answer
Commensalism
Hebitate
Mutualism
Symbiosis
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Question # 2
Organism in ecologicla communits interact with one anothe rin....... major ways.
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Two
three
Four
Five
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Question # 3
During the combustion of fossil fuel. Which gas is ener the atmosphere.
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Nitrogen
Oxygen
Carbon di oxide
Hydrogen
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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
Green house gases is
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Carbon di oxide
Methane
Oxides of nitrogen
All these
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Question # 6
The organisms upon whihc a redator feeds are called.
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Prey
Carnivores
Herbivores
Producers
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Question # 7
A relationship where two species live together closely is called
Choose an answer
Symbiosis
Predation
Competitor
None of these
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Question # 8
A relationship where two species live togetehr closely is called.
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Mutualism
Commensalism
Symbiosis
Hebitate
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Question # 9
------------- 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
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Question # 10
The feeding level of an organism in an ecosystem is called.
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Food Web
Food chain
Trophical level
Secession level
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Question # 11
A food chain starts from the..........
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Primary carnivores
Herbivores
Producers
Top carnivores
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