1. When the World Biodiversity Day observed? (UPPSC 2018)
a) March,22
b) May, 22
c) June, 23
d) April, 16
Answer. b) May, 22
2. Which of the following statements is NOT true? (UPPSC 2019)
a) Species diversity increases from the equator towards the poles
b) Tropics harbor more species than temperate areas.
c) The greatest biodiversity occurs in the Amazonian rainforest.
d) Species diversity decreases from temperate areas toward the poles
Answer. a) Species diversity increases from the equator toward the poles
3. The most biodiversity-rich area in India is: (UPPSC 2019)
a) Gangetic plain
b) Trans Himalayas
c) the Western Ghats
d) Central India
Answer. c) the Western Ghats
4. Which of the following ecosystems has the highest biodiversity?
a) Tropical rainforest
b) Mangrove
c) Coral reef
d) Marshy ecosystem
Answer. c) Coral reef
5. Which of the following can be threats to the biodiversity of a geographical area? (UPSC 2012)
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:
a) 1, 2, and 3 only
b) 2 and 3 only
c) 1 and 4 only
d) 1, 2, 3 and 4
Answer. a) 1, 2, and 3 only
6. Which of the following is not responsible for the increase in the biodiversity of an ecosystem? ( UPPSC 2015)
a) Productivity of the ecosystem
b) Intermediate disturbance
c) Age of ecosystem
d) less number of tropic levels
Answer. d
7. Which of the following is an important strategy for the conservation of biodiversity? (UPPSC 2013)
a) Biosphere Reserve
b) Botanical Gardens
c) National Parks
d) Wildlife Sanctuaries
Answer. a) Biosphere Reserve
8. The maximum biodiversity is found in (UPPSC 2016)
a) tundra
b) coniferous forests
c) tropical rainforests
d) temperate forests
Answer. c) tropical rainforests
9. The main reason for the decrease in biodiversity is ( UPPSC 2016)
a) Habitat pollution
b) Introduction of exotic species
c) Overexploitation
d) Natural habitat destruction
Answer. d) Natural habitat destruction is the main reason for the decrease in biodiversity.
10. Three of the following criteria have contributed to the recognition of Western Ghats-Sri Lanka and Indo-Burma regions as hotspots of biodiversity: (UPSC 2011)
1. Species richness
2. Vegetation density
3. Endemism
4. Ethno-botanical importance
5. Threat perception
6. Adaptation of flora and fauna to warm and humid conditions
Which three of the above are correct criteria in this context?
a) 1 2 and 6
b) 2, 4 and 6
c) 1, 3 and 5
d) 3, 4 and 6
Answer. c) 1, 3 and 5
11.