| 1 |
Energy of ............ is trapped as chemicla energy by producers. |
- A. Moon
- B. Atom
- C. Sun
- D. Earth
|
| 2 |
Th graphical epresentation of tropihic relationship oforaganisms in an ecosystem is called. |
- A. Food Chian
- B. Ecological pyramid
- C. Trophic level
- D. Predation
|
| 3 |
Which factor is responsible for ecological imbalance. |
- A. Over hunting
- B. Change in water supply
- C. Migration
- D. All these
|
| 4 |
During respiration by the animals, whihc gas is released into the atmosphere. |
- A. Nitrogen
- B. Oxygen
- C. Carbon Di oxide
- D. Hydrogen
|
| 5 |
------------- 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
|
| 6 |
The phenomenon which doe snot lead to global warming. |
- A. Green hous effect
- B. Ozone depletion
- C. Deforestation
- D. Photosynthesis
|
| 7 |
Carbon cycle and ............. cycle are teh processes in whihc these minerals circulate between the organisms and the environment. |
- A. Hydrogen
- B. Iodine
- C. Oxygen
- D. Nitrogen
|
| 8 |
Green house gases is |
- A. Carbon di oxide
- B. Methane
- C. Oxides of nitrogen
- D. All these
|
| 9 |
During the combustion of fossil fuel. Which gas is ener the atmosphere. |
- A. Nitrogen
- B. Oxygen
- C. Carbon di oxide
- D. Hydrogen
|
| 10 |
The energy of the Sun in traped as chemical energy by. |
- A. Tertiary consumers
- B. Primary consumers
- C. Producers
- D. Secondary consumers
|