| 1 |
The feeding level of an organism in an ecosystem is called. |
- A. Food Web
- B. Food chain
- C. Trophical level
- D. Secession level
|
| 2 |
Which is the solution of environmental problems. |
- A. Reducing pollution
- B. Plantation
- C. Protection of endangered
- D. All these
|
| 3 |
A symbiotic relationship in whihc both speciesl get benefit is called. |
- A. Commensalism
- B. Hebitate
- C. Mutualism
- D. Symbiosis
|
| 4 |
The organisms upon whihc a redator feeds are called. |
- A. Prey
- B. Carnivores
- C. Herbivores
- D. Producers
|
| 5 |
During the combustion of fossil fuel. Which gas is ener the atmosphere. |
- A. Nitrogen
- B. Oxygen
- C. Carbon di oxide
- D. Hydrogen
|
| 6 |
Which factor is responsible for ecological imbalance. |
- A. Over hunting
- B. Change in water supply
- C. Migration
- D. All these
|
| 7 |
A food chain starts from the.......... |
- A. Primary carnivores
- B. Herbivores
- C. Producers
- D. Top carnivores
|
| 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 |
The energy of the Sun in traped as chemical energy by. |
- A. Tertiary consumers
- B. Primary consumers
- C. Producers
- D. Secondary consumers
|
| 10 |
A relationship where two species live together closely is called |
- A. Symbiosis
- B. Predation
- C. Competitor
- D. None of these
|