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8th Class General Science Chapter 1 Online Test
8th Class English Medium Subjects
8th Class Urdu Medium Subjects
MCQ's Test For Chapter 1 "General Science 8th Class English Medium Chapter 1 Online Test"
Try The MCQ's Test For Chapter 1 "General Science 8th Class English Medium Chapter 1 Online Test"
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Total Questions10
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Time Allowed10
General Science 8th Class English Medium Chapter 1 Online Test
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Question # 1
------------- through the food chain is one of the most important functionsof an ecosystem in maintaining balance of nature.
Question # 2
Energy of ............ is trapped as chemicla energy by producers.
Question # 3
Half of the increase in atmospheric carbon dioxide concentrations in the last.............. years has occured since 1980
Question # 4
The energy of the Sun in traped as chemical energy by.
Question # 5
Carbon cycle and ............. cycle are teh processes in whihc these minerals circulate between the organisms and the environment.
Question # 6
A symbiotic relationship in whihc both speciesl get benefit is called.
Question # 7
Which is the solution of environmental problems.
Question # 8
Green house gases is
Question # 9
During the combustion of fossil fuel. Which gas is ener the atmosphere.
Question # 10
The poisonous and harmsful substances which make the air unfavorable for life are called.
8th General Science English Medium Chapter 1 Test
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8th General Science (English Medium) Chapter 1 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Green house gases is |
A. Carbon di oxide
B. Methane
C. Oxides of nitrogen
D. All these
|
| 2 | The feeding level of an organism in an ecosystem is called. |
A. Food Web
B. Food chain
C. Trophical level
D. Secession level
|
| 3 | Half of the increase in atmospheric carbon dioxide concentrations in the last.............. years has occured since 1980 |
A. 100
B. 200
C. 300
D. 400
|
| 4 | During the combustion of fossil fuel. Which gas is ener the atmosphere. |
A. Nitrogen
B. Oxygen
C. Carbon di oxide
D. Hydrogen
|
| 5 | Organism in ecologicla communits interact with one anothe rin....... major ways. |
A. Two
B. three
C. Four
D. Five
|
| 6 | All the food chains are joined together to form ..... |
A. Food web
B. Ecologicla pyramid
C. Tropicla level
D. None of these
|
| 7 | ------------- gas is released when dead organisms are decomposed by the decomposers. |
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Hydrogen
|
| 8 | Th graphical epresentation of tropihic relationship oforaganisms in an ecosystem is called. |
A. Food Chian
B. Ecological pyramid
C. Trophic level
D. Predation
|
| 9 | A relationship where two species live together closely is called |
A. Symbiosis
B. Predation
C. Competitor
D. None of these
|
| 10 | Consumers that actively hunt other organism are called. |
A. Prey
B. Competitor
C. Predator
D. Symbiont
|
Test Questions