Ecology

Total Questions: 27

1 - The phenomenon which does not lead to global warming:

A ) Greenhouse effect
B ) Ozone depletion
C ) Deforestation
D ) Photosynthesis ✅

2 - The feeding level of an organism in an ecosystem is called

A ) Trophic level ✅
B ) Secession level
C ) Food chain
D ) Food web

3 - The graphical representation of trophic relationship of organisms in an ecosystem is called

A ) Food chain
B ) Trophic level
C ) Ecological pyramid ✅
D ) Predation

4 - All the food chains are joined together to form

A ) Ecological pyramid
B ) Food web ✅
C ) Tropical level
D ) None of these

5 - The energy of the Sun is trapped as chemical energy by

A ) Producers ✅
B ) Primary consumers
C ) Secondary consumers
D ) Tertiary consumers

6 - Consumers that actively hunt other organism are called

A ) Prey
B ) Predator ✅
C ) Symbiont
D ) Competitor

7 - A relationship where two species live together closely is called

A ) Predation
B ) Symbiosis ✅
C ) Competition
D ) None of these

8 - We can solve environmental problem by:

A ) Reducing pollution
B ) Plantation
C ) Protection of endangered species
D ) All of these ✅

9 - Ecological imbalance is caused by:

A ) Migration
B ) Over hunting
C ) Over population
D ) All of these ✅

10 - _____ through the food chain is one of the most important functions of an ecosystem in maintaining balance of nature.

A ) Waisting of energy
B ) Transfer of energy ✅
C ) Produce of energy
D ) Destroy of energy

12 - During respiration by the animals, which gase is released into the atmosphere?

A ) Nitrogen
B ) Oxygen
C ) Carbon dioxide ✅
D ) Hydrogen

13 - During the combustion of fossil fuel , which gase is enter the atmosphere?

A ) Oxygen
B ) Nitrogen
C ) Carbon dioxide ✅
D ) Hydrogen

14 - _____ gas is released when dead organisms are decomposed by the decomposers.

A ) Oxygen
B ) Carbon dioxide ✅
C ) Nitrogen
D ) Hydrogen

15 - _____ occupy the base of pyramid.

A ) Producers ✅
B ) Primary carnivores
C ) Herbivores
D ) Top carnivores

16 - A food chain starts from the_____.

A ) Producers ✅
B ) Primary carnivores
C ) Herbivores
D ) Top carnivores

18 - The organisms upon which a predator feeds are called_____.

A ) Prey ✅
B ) Carnivores
C ) Herbivores
D ) Producers

19 - A relationship where two species live together closely is called _____.

A ) Mutualism
B ) Commensalism
C ) Symbiosis ✅
D ) Hebitate

20 - A symbiotic relationship in which both species get benefit is called____.

A ) Mutualism ✅
B ) Commensalism
C ) Symbiosis
D ) Hebitate

21 - Which factor is responsible for ecological imbalance:

A ) Over hunting
B ) Change in water supply
C ) Migration
D ) All these ✅

22 - Greenhouse gases is /are :

A ) Carbon dioxide
B ) Methane
C ) Oxides of nitrogen
D ) All these ✅

23 - Ozone is a layer of gases in_____ atmosphere of the Earth.

A ) Upper ✅
B ) Lower
C ) Middle
D ) Inner

24 - The poisonous and harmful substances which make the air unfavorable for life are called:

A ) Solid pollutant
B ) Air pollutant ✅
C ) Water pollutant
D ) Acid rain

26 - Which is the solution of environmental problems?

A ) Reducing pollution
B ) Plantation
C ) Protection of endangered
D ) All these ✅