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Question 1 of 10
1. Question
2 points
With reference to the Air (Prevention and Control of Pollution) Act, consider the following statements:
1. Under the Act, noise is listed as one of the causes of pollution.
2. The Central Pollution Control Board (CPCB) was constituted under this Act in 1974.
3. Under the Act, all industries operating within designated air pollution control areas must obtain a permit from the State Pollution Control Board.
Which of the statements given above is/are correct?
Correct
Ans c
The Central Pollution Control Board (CPCB), statutory organisation, was constituted in 1974 under the Water (Prevention and Control of Pollution) Act, 1974.
However, CPCB was also entrusted with the powers and functions under the Air (Prevention and Control of Pollution) Act, 1981.
Incorrect
Ans c
The Central Pollution Control Board (CPCB), statutory organisation, was constituted in 1974 under the Water (Prevention and Control of Pollution) Act, 1974.
However, CPCB was also entrusted with the powers and functions under the Air (Prevention and Control of Pollution) Act, 1981.
Question 2 of 10
2. Question
2 points
The Himalayan Range is very rich in species diversity. Which one among the following is the most appropriate reason for this phenomenon?
Correct
Ans b
The Himalayas is a confluence point for different bio-geographical zones.
In addition, it is at confluence of the two of the world’s main bio-geographical regions, the palearctic and oriental realms.
Incorrect
Ans b
The Himalayas is a confluence point for different bio-geographical zones.
In addition, it is at confluence of the two of the world’s main bio-geographical regions, the palearctic and oriental realms.
Question 3 of 10
3. Question
2 points
Which of the following statements regarding Alien Species is/ are correct?
1. These are exotic species introduced only unintentionally in local habitats.
2. It doesn’t necessarily lead to extinction of indigenous species.
3. Parthenium, Lantana, and Eichhornia are some examples of invasive alien species in India.
Select the correct answer using the code given below:
Correct
Ans b
Exotic species not belonging to the local ecosystem are called Alien Species and they may be introduced unintentionally or deliberately as well.
Incorrect
Ans b
Exotic species not belonging to the local ecosystem are called Alien Species and they may be introduced unintentionally or deliberately as well.
Question 4 of 10
4. Question
2 points
Which of the following is/ are the causes of Algal Bloom?
1. Agricultural Runoff
2. Discharge of untreated Sewage
3. Discharge of untreated Industrial Effluents
4. Blockage in flow of rivers
Select the correct answer using the code given below:
Correct
Ans d
All the statements are correct.
Incorrect
Ans d
All the statements are correct.
Question 5 of 10
5. Question
2 points
Consider the following statements:
1. Bioplastic can be degraded by microorganisms into water, carbon dioxide and biomass.
2. Thermoplastics if moulded once, cannot be reused.
3. Thermosetting plastics are capable of repeated softening and hardening.
Which of the statements given above is/are incorrect?
Correct
Ans c
Thermoplastics are capable of repeatedly softening on heating and hardening on cooling.
They get deformed easily on heating and can be bent easily.
Thermosetting plastics are moulded once cannot be softened by heating. It cannot be reused.
Incorrect
Ans c
Thermoplastics are capable of repeatedly softening on heating and hardening on cooling.
They get deformed easily on heating and can be bent easily.
Thermosetting plastics are moulded once cannot be softened by heating. It cannot be reused.
Question 6 of 10
6. Question
2 points
Which of the following can be threats to the biodiversity of a geographical area?
1. Global warming
2. Fragmentation of habitat
3. Invasion of alien species
4. Promotion of vegetarianism
Select the correct answer using the codes given below:
Correct
Ans a
Promotion of vegetarianism does not adversely affect biodiversity.
Incorrect
Ans a
Promotion of vegetarianism does not adversely affect biodiversity.
Question 7 of 10
7. Question
2 points
Temperature and water are the most ecologically relevant environmental factors. In this context, consider the following statements:
1. Stenothermal organisms can tolerate and thrive in a wide range of temperatures.
2. Euryhaline organisms are restricted to a narrow range of salinity.
Which of the statements given above is/are not correct?
Correct
Ans c
A few organisms can tolerate and thrive in a wide range of temperatures (they are called eurythermal), but, a vast majority of them are restricted to a narrow range of temperatures (such organisms are called stenothermal).
Some organisms are tolerant of a wide range of salinities (euryhaline) but others are restricted to a narrow range (stenohaline).
Incorrect
Ans c
A few organisms can tolerate and thrive in a wide range of temperatures (they are called eurythermal), but, a vast majority of them are restricted to a narrow range of temperatures (such organisms are called stenothermal).
Some organisms are tolerant of a wide range of salinities (euryhaline) but others are restricted to a narrow range (stenohaline).
Question 8 of 10
8. Question
2 points
With reference to Photosynthetically Active Radiation (PAR), consider the following statements:
1. Of the total incident solar radiation more than 70 per cent of it is photosynthetically active radiation (PAR).
2. Plants on earth capture only 2-10 percent of the total photosynthetically active radiation (PAR).
Which of the statements given above is/are correct?
Correct
Ans b
Except for the deep-sea hydro-thermal ecosystem, sun is the only source of energy for all ecosystems on Earth.
Of the incident solar radiation less than 50 per cent of it is photosynthetically active radiation (PAR).
Incorrect
Ans b
Except for the deep-sea hydro-thermal ecosystem, sun is the only source of energy for all ecosystems on Earth.
Of the incident solar radiation less than 50 per cent of it is photosynthetically active radiation (PAR).
Question 9 of 10
9. Question
2 points
With reference to the hunting of wild animals in India, consider the following statements:
1. The Chief Wildlife Wardern can permit to hunt the wild animal that has become dangerous for human life.
2. The killing of wild animal in self defence is not considered as an offence.
3. Any wildlife animal killed or wounded in defence of a person is considered the property of Government.
Which of the statements given above are correct?
Correct
Ans d
All the statements are correct.
Incorrect
Ans d
All the statements are correct.
Question 10 of 10
10. Question
2 points
In the context of biodiversity, Allen’s rule states that
Correct
Ans a
Allen’s rule states that mammals from colder climates generally have shorter ears and limbs to minimise heat loss.
A smaller body surface area helps animals in colder regions stay warm by slowing down the loss of body heat.
Incorrect
Ans a
Allen’s rule states that mammals from colder climates generally have shorter ears and limbs to minimise heat loss.
A smaller body surface area helps animals in colder regions stay warm by slowing down the loss of body heat.