| 1 |
During respiration by the animals, whihc gas is released into the atmosphere. |
- A. Nitrogen
- B. Oxygen
- C. Carbon Di oxide
- D. Hydrogen
|
| 2 |
--------occupy the b ase of pyramid. |
- A. Producers
- B. Primary canivores
- C. Herbivores
- D. Top carnivores
|
| 3 |
The feeding level of an organism in an ecosystem is called. |
- A. Food Web
- B. Food chain
- C. Trophical level
- D. Secession level
|
| 4 |
Which is the solution of environmental problems. |
- A. Reducing pollution
- B. Plantation
- C. Protection of endangered
- D. All these
|
| 5 |
Green house gases is |
- A. Carbon di oxide
- B. Methane
- C. Oxides of nitrogen
- D. All these
|
| 6 |
Ozone is a layer of gases in ............. atmosphere of the Earth. |
- A. Upper
- B. Lower
- C. Middle
- D. Inner
|
| 7 |
A food chain starts from the.......... |
- A. Primary carnivores
- B. Herbivores
- C. Producers
- D. Top carnivores
|
| 8 |
Energy of ............ is trapped as chemicla energy by producers. |
- A. Moon
- B. Atom
- C. Sun
- D. Earth
|
| 9 |
A relationship where two species live together closely is called |
- A. Symbiosis
- B. Predation
- C. Competitor
- D. None of these
|
| 10 |
------------- gas is released when dead organisms are decomposed by the decomposers. |
- A. Oxygen
- B. Carbon dioxide
- C. Nitrogen
- D. Hydrogen
|