Q. No."The Evil Quartet" of biodiversity loss includes. which of the following?
| 1. | Over-exploitation; Alien species invasions; Air pollution; Co-extincutions |
| 2. | Habitat loss and fragmentation; over-exploitation; Alien species invasions; Co-extinctions |
| 3. | Habitat loss and fragmentation; Air pollution; Water pollution; Co-extinctions |
| 4. | Over-exploitation; Alien species invasions; Soil pollution; Co-extinctions |
Subtopic: Â Loss of Biodiversity |
 86%
Level 1: 80%+
NEET - 2026
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Which of the following statements are correct ?
Choose the correct answer from the options given below
| A. | The Amazon rainforest being cut and cleared for cultivation of soyabeans is an example of habitat loss. |
| B. | Steller's sea cow and passenger pigeon >became extinct due to over-exploitation by humans. |
| C. | The Nile perch introduced into Lake Victoria in East Africa helped in population growth of cichlid fish in the lake. |
| D. | Water hyacinth is an invasive species. |
| E. | When a species becomes extinct, the plant and animal species associated with it are not affected. |
| 1. | B, C and D only |
| 2. | A, B and D only |
| 3. | A, B and E only |
| 4. | C, D and E only |
Subtopic: Â Loss of Biodiversity |
 79%
Level 2: 60%+
NEET - 2026
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Since the origin and diversification of life on Earth, there have been five episodes of extinction of species. How is the sixth extinction which is in progress different from the previous episodes?
| 1. | The current species extinction rates are lower than those in previous episodes. |
| 2. | The present species extinction rates are 100 to 1000 times faster than in the pre-human times. |
| 3. | The present net species extinction rate is zero. |
| 4. | The current species extinction rate is nearly 10 times faster than that in previous episodes. |
Subtopic: Â Loss of Biodiversity |
 82%
Level 1: 80%+
NEET - 2026
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Match List-I with List-II:
Choose the options with all correct matches.
1. A-III, B-IV, C-II, D-I
2. A-III, B-II, C-IV, D-I
3. A-III, B-II, C-I, D-IV
4. A-III, B-I, C-II, D-IV
| List-I | List-II | ||
| A. | The Evil Quartet | I. | Cryopreservation |
| B. | Ex-situ | II. | Alien species invasion |
| C. | Lantana camara | III. | Causes of biodiversity losses |
| D. | Dodo | IV. | Extinction |
1. A-III, B-IV, C-II, D-I
2. A-III, B-II, C-IV, D-I
3. A-III, B-II, C-I, D-IV
4. A-III, B-I, C-II, D-IV
Subtopic: Â Loss of Biodiversity |Â Biodiversity Conservation |
 80%
Level 1: 80%+
NEET - 2025
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Subtopic: Â Loss of Biodiversity |
 88%
Level 1: 80%+
NEET - 2024
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These are regarded as major causes of biodiversity loss:
A: Over exploitation
B: Co-extinction
C: Mutation
D: Habitat loss and fragmentation
E: Migration
Choose the correct option:
1. A, B, C and D only
2. A, B and E only
3. A, B and D only
4. A, C and D only
A: Over exploitation
B: Co-extinction
C: Mutation
D: Habitat loss and fragmentation
E: Migration
Choose the correct option:
1. A, B, C and D only
2. A, B and E only
3. A, B and D only
4. A, C and D only
Subtopic: Â Loss of Biodiversity |
 81%
Level 1: 80%+
NEET - 2024
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Given below are two statements:
In light of the above statements, choose the correct answer from the options given below:
1. Both Statement I and Statement II are true
2. Both Statement I and Statement II are false
3. Statement I is true but Statement II is false
4. Statement I is false but Statement II is true
| Statement l: | Rain forests, which used to cover more than 14% of the earth's land surface, are now reduced to 6%. |
| Statement II: | The Amazon rain forest has the greatest biodiversity on earth. |
1. Both Statement I and Statement II are true
2. Both Statement I and Statement II are false
3. Statement I is true but Statement II is false
4. Statement I is false but Statement II is true
Subtopic: Â Biodiversity Patterns |Â Loss of Biodiversity |
 89%
Level 1: 80%+
NEET - 2024
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Which one of the following is not included under in-situ conservation?
| 1. | Wild-life sanctuary | 2. | Botanical garden |
| 3. | Biosphere reserve | 4. | National park |
Subtopic: Â Loss of Biodiversity |Â In Situ Conservation of Biodiversity |Â Ex Situ Conservation of Biodiversity |
 78%
Level 2: 60%+
NEET - 2024
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Among 'The Evil Quartet', which one is considered the most important cause driving extinction of species?
1. Co-extinctions
2. Habitat loss and fragmentation
3. Over exploitation for economic gain
4. Alien species invasions
1. Co-extinctions
2. Habitat loss and fragmentation
3. Over exploitation for economic gain
4. Alien species invasions
Subtopic: Â Loss of Biodiversity |
 84%
Level 1: 80%+
NEET - 2023
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Which of the following is/are cause(s) of biodiversity losses?
1. Over-exploitation, habitat loss and fragmentation
2. Climate change only
3. Over-exploitation only
4. Habitat loss and fragmentation only
1. Over-exploitation, habitat loss and fragmentation
2. Climate change only
3. Over-exploitation only
4. Habitat loss and fragmentation only
Subtopic: Â Loss of Biodiversity |
 91%
Level 1: 80%+
NEET - 2023
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