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Online Tests
Science 8th Class English Medium Chapter 1 Online Test MCQs With Answers
Question # 1
The energy of the Sun in traped as chemical energy by.
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Tertiary consumers
Primary consumers
Producers
Secondary consumers
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Question # 2
Green house gases is
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Carbon di oxide
Methane
Oxides of nitrogen
All these
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Question # 3
The organisms upon whihc a redator feeds are called.
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Prey
Carnivores
Herbivores
Producers
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Question # 4
Organism in ecologicla communits interact with one anothe rin....... major ways.
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Two
three
Four
Five
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Question # 5
Ozone is a layer of gases in ............. atmosphere of the Earth.
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Upper
Lower
Middle
Inner
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Question # 6
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
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Question # 7
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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Question # 8
Energy of ............ is trapped as chemicla energy by producers.
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Moon
Atom
Sun
Earth
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Question # 9
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 # 10
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
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