| 1 |
Th graphical epresentation of tropihic relationship oforaganisms in an ecosystem is called. |
- A. Food Chian
- B. Ecological pyramid
- C. Trophic level
- D. Predation
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| 2 |
During the combustion of fossil fuel. Which gas is ener the atmosphere. |
- A. Nitrogen
- B. Oxygen
- C. Carbon di oxide
- D. Hydrogen
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| 3 |
------------- gas is released when dead organisms are decomposed by the decomposers. |
- A. Oxygen
- B. Carbon dioxide
- C. Nitrogen
- D. Hydrogen
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| 4 |
Which factor is responsible for ecological imbalance. |
- A. Over hunting
- B. Change in water supply
- C. Migration
- D. All these
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| 5 |
During respiration by the animals, whihc gas is released into the atmosphere. |
- A. Nitrogen
- B. Oxygen
- C. Carbon Di oxide
- D. Hydrogen
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| 6 |
Consumers that actively hunt other organism are called. |
- A. Prey
- B. Competitor
- C. Predator
- D. Symbiont
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| 7 |
Which is the solution of environmental problems. |
- A. Reducing pollution
- B. Plantation
- C. Protection of endangered
- D. All these
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| 8 |
------------- through the food chain is one of the most important functionsof an ecosystem in maintaining balance of nature. |
- A. Waisting of energy
- B. Destroy fo energy
- C. Transfer of energy
- D. Produce of energy
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| 9 |
The phenomenon which doe snot lead to global warming. |
- A. Green hous effect
- B. Ozone depletion
- C. Deforestation
- D. Photosynthesis
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| 10 |
Green house gases is |
- A. Carbon di oxide
- B. Methane
- C. Oxides of nitrogen
- D. All these
|