ENVIRONMENT FOR UPSC PRELIMS 2020 , TEST-3

Q 1 . Consider the following statements:
1. Genetic diversity refers to the variation of genes within species.
2. Specie richness refers to the variety of species within a region.
Select the incorrect statement:
a) Only 1
b) Only 2
c) Both 1 and 2
d) Neither 1 nor 2

Q 2 . Consider the following differences between Crocodile and Aligator. Select the incorrect statement.
a) Alligators have wider, U-shaped snouts, while crocodile front ends are more pointed and V-shaped.
b) Alligators tend to live in saltwater habitats, while crocodiles hang out in freshwater marshes and lakes.
c) In alligators, the upper jaw is wider than the lower jaw and completely overlaps it. Therefore, when mouth closed, only the top teeth are visible.
d) In crocodiles, the upper jaw and lower jaw are approximately the same width, and so both the top and bottom teeth are visible when mouth is closed.

Q 3 . Environmentalists and ecologists have given high importance to Social forestry programme and a lot of debates focusing on Eucalyptus. Which among the following is true in regard to it?
1) Social forestry refers to the concept of planting trees and pasture development on village common lands, roadside and along railways, commonly in non-forest areas for the benefit of the society.
2) Eucalyptus is grown extensively under this programme as its cultivation has proved to be an ecological friendly.
3) This is because other plants can grow near Eucalyptus trees and they take up very less ground water and soil nutrients.
Select the correct code:
a) 1 only
b) 2 and 3 only
c) 1 and 3 only
d) All of the above

Q 4 . Which of the below statements about Ganges River Dolphin is/are correct?
1) The Ganges River Dolphin is also known as the “Susu” or “Soons” is an endemic fauna of the Ganges, Brahmaputra, and Meghna river systems.
2) They are often known as the “Tiger of Indian Rivers”, the river dolphin is an indicator animal and has the same position in a river ecosystem as a tiger in a forest, its presence indicating a sign of a healthy river ecosystem.
Select the correct code:
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2

Q 5 . Which of the following groups exhibit more species diversity?
a) Angiosperms
b) Algae
c) Bryophytes
d) Fungi

Q 6 . Consider the following National Park/Wild life Sanctuaries and the animals they are famous for:
National Park/ Sanctuary : Species
1. Kaziranga : One horned Rhinoceros
2. Ranthambor : Tiger
3. Chambal Wildlife Sanctuary : Gharial
4. Kutch wildlife Sanctuary : Asiatic wild Ass
Which of the above are correctly matched?
a) 1 and 2
b) 1,2 and 4
c) 2,3 and 4
d) All of the above

Q 7 . Consider the following statements regarding ‘Pitcher’ Plant:
1. It is a carnivorous plant.
2. It does not make its food through photosynthesis because of lack of nutrients.
3. It is found in the Thar desert of India
Which of the above statement(s) are correct?
a) 1 only
b) 2 and 3
c) 1 and 3
d) All of the above

Q 8 . Which of the following are the causes for loss of biodiversity?
1. Destruction of Habitat
2. Invasion by alien species
3. Keeping animals in Zoological parks
4. Over exploitation of natural resources
5. Climate change
Select the code from below:
a) 1,2,3 and 4
b) 1,2,4 and 5
c) 1,4 and 5
d) All of the above

Q 9 . Which among the following is/are economic importance of Algae?
1) Algae as Food for Humans
2) Algae in Agriculture
3) Algae in Industry
4) Algae in space travel
Choose the appropriate code:
a) 2 and 3 only
b) 2, 3 and 4 only
c) 1, 2 and 3 only
d) All of the above

Q 10 . Consider the following statement regarding ‘Hangul’:
1. Hangul is the only surviving member of the Asiatic ‘Red Deer’ family.
2. It is critically endangered and found only in the forests of Jammu and Kashmir, Uttarakhand and Sikkim.
3. It was named as the state animal of ‘Jammu and Kashmir’.
Which of the above statements are incorrect?
a) 1 and 3
b) 2 only
c) 1 and 2
d) None of the above