| 1 |
Conversion of Nitrates into nitrogen gas is called. |
- A. Denitrification
- B. Assimilation
- C. Ammonification
- D. Nitrogen fixtation
|
| 2 |
Which of the following is not an example of green house gas? |
- A. CO<sub>2</sub>
- B. Methane
- C. Oxygen
- D. Nitrous oxide
|
| 3 |
All ecosystems of the world combine to form. |
- A. Community
- B. Population
- C. Biosphere
- D. Competition
|
| 4 |
Nitrogen is an important component of: |
- A. Proteins
- B. Nucleic acid
- C. Lipids
- D. Both a and b
|
| 5 |
Rabbit is a : |
- A. Producer
- B. Herbivore
- C. Cornivore
- D. Tertiary Consumer
|
| 6 |
During nitrogen fixation nitrogen is converted into: |
- A. Nitrates
- B. nitrates
- C. ammonia
- D. all to these
|
| 7 |
A relationship between species in which both species benefit is called. |
- A. Parasitism
- B. Mutualism
- C. Symbiosis
- D. Commensalism
|
| 8 |
Organisms that make their own food with help of sunlight, CO and H<sub>2</sub>O are called. |
- A. Consumers
- B. Producers
- C. Decomposers
- D. Predators
|
| 9 |
Living of nitrogen fixing bacteria in the roots nodules of Leguminous plant is an example of. |
- A. Predation
- B. Parasitism
- C. Mutualism
- D. Commensalism
|
| 10 |
The conversion of ammonia to nitrates is carried out by soil bacteria. This process is called. |
- A. Nitrification
- B. Denitrification
- C. Nitrogen fixation
- D. Assimilation
|
