11. Which of the following statements are correct regarding Temperate rain forests?
1) Fog may be very heavy and Rainfall is very high.
2) The biotic diversity is high as compared to other temperate forests.
3) The diversity of plants and animals is much low as compared to the tropical rainforest
Select the correct option from the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3
Answer: D [1, 2 & 3]
Notes:
In the Temperate rain forests, Fog may be very heavy and Rainfall is very high. The biotic diversity is high as compared to other temperate forests and the diversity of plants and animals is much low as compared to the tropical rainforest.
12. Which type of forests are found along the Western Ghats and the Nicobar and Andaman Islands?
[A] Tropical Dry deciduous forest
[B] Tropical Wet evergreen forests
[C] Tropical Moist deciduous forests
[D] Tropical Semi-evergreen forests
Answer: B [Tropical Wet evergreen forests]
Notes:
Tropical evergreen forests are usually found in the areas with more than 200 cm of rainfall and 15 °C to 30 °C temperature. Wet evergreen forests are found along the Western Ghats, the Nicobar and Andaman Islands, and all along the northeastern region.
13. Which of the following statements are correct about the Sub alpine forest?
1) In the Eastern Himalayas, the vegetation consists mainly of juniper, rhododendron, willow, and black currant.
2) In the Western parts, red fir, black juniper, birch, and larch are the common trees.
Select the correct option from the codes given below:
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 & 2
Answer: D [Neither 1 & 2]
Notes:
In the Sub alpine forest in the Eastern Himalayas, the vegetation consists mainly of juniper, rhododendron, willow, and black currant. In the Western parts, red fir, black juniper, birch, and larch are commonly found.
14. Which of the following are the characteristic features of Thar desert?
1. The climate is characterised by excessive drought as the rainfall being scanty and irregular.
2. The relative humidity of the atmosphere is always high.
3. There are extreme variations of temperature and the temperature is frequently below freezing point at night.
Select the correct option from the codes given below:
[A] Only 1 & 2
[B] Only 1 & 3
[C] Only 2 & 3
[D] 1, 2 & 3
Answer: B [Only 1 & 3]
Notes:
Some of the characteristic features of Thar desert are as follows:
1. The climate is characterised by excessive drought as the rainfall being scanty and irregular.
2. The relative humidity of the atmosphere is always low.
3. There are extreme variations of temperature and the temperature is frequently below freezing point at night.
15. In which of the following North-Eastern states, there has been a decrease in forest cover?
1) Assam
2) Tripura
Select the correct option from the codes given below:
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 & 2
Answer: D [Neither 1 & 2]
Notes:
Around 65.05 % of the geographical areas of the Northeastern states in covered with forests. The total forest cover in the North-Eastern region is 1,70,541 sq km. Except for Assam and Tripura, all the States in the region show decrease in forest cover.
16. Which of the following is/are the reasons of coral bleaching?
1) The densities of zooxanthellae decline in the Corals.
2) A decline in the concentration of photosynthetic pigments within the zooxanthellae.
Select the correct option from the codes given below:
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 & 2
Answer: C [Both 1 & 2]
Notes:
Coral Bleaching or the paling of coral colour occurs due to the following reasons:
1) The densities of zooxanthellae decline in the Corals.
2) A decline in the concentration of photosynthetic pigments within the zooxanthellae.
17. Which of the following are the effects of Eutrophication?
1. Eutrophication creates a detritus layer in the ponds & lakes and produces successively shallower depth of surface water.
2. The water body is eventually reduced into marsh whose plant community is transformed from an aquatic environment to recognizable terrestrial ecosystem.
Select the correct option from the codes given below:
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 & 2
Answer: 0 []
Notes:
Eutrophication creates a detritus layer in the ponds & lakes and produces successively shallower depth of surface water. The water body is eventually reduced into marsh whose plant community is transformed from an aquatic environment to recognizable terrestrial ecosystem.
18. Which of the following statements are correct about Nelson’s small-eared shrew?
1. It is a species of mammal belonging to the family Soricidae.
2. It is endemic to eastern Mexico.
Select the correct option from the codes given below:
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 & 2
Answer: C [Both 1 & 2]
Notes:
Nelson’s small-eared shrew is a species of mammal belonging to the family Soricidae. It is endemic to eastern Mexico. Its scientific name is Cryptotis nelsoni.
19. World Wetlands Day is celebrated on which of the following days?
[A] 2 January
[B] 2 February
[C] 2 March
[D] 2 April
Answer: B [2 February]
Notes:
World Wetlands Day is celebrated every year on 2nd February to mark the date of the adoption of the Convention on the Wetlands on 2nd February 1971, in Ramsar located in Iran.
20. International Whaling Commission is headquartered at which of the following places?
[A] Rome
[B] Impington
[C] Paris
[D] Germany
Answer: B [Impington]
Notes:
The International Whaling Commission is the global body that is in charge of the conservation of whales and the management of whale hunting. Founded on 2 December 1946, It is headquartered at Impington, United Kingdom.
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