UPSC NCRET ENVIRONMENT NOTES: TOPIC WISE SOLVED MCQ’s

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1. Which of the following is/are the unique characteristics of Equatorial Forests?

1. Presence of numerous varieties of epiphytes

2. Presence of tall, closely set trees with crowns forming a continuous canopy

3. Coexistence of a large number of species

Choose the right answer from the codes provided below:

a) 2 only                    b) 1 and 3 only

c) 1 and 2 only          d) 1,2 and 3

Ans:     D

2. With reference to the food chains in the ecosystems, which of the following kinds of organisms is/are known as the decomposer organisms?

1. Bacteria           2. virus                        3. Fungi

Choose the right answer from the codes provided below:

a) 3 only            b) 1 and 3 only

c) 2 and 3 only  d) 1,2 and 3

Ans:     B

3. Which of the following modifications in leaf, occurs in the desert areas to inhibit water loss in the plant species?

1. Thorns instead of leaves

2. Hard and waxy leaves

3. Tiny leaves or no leaves

Choose the right answer from the codes provided below:

a) 1 and 3 only            b) 3 only

c) 2 and 3 only            d) 1,2 and 3

Ans:     D

4. With reference to the following fauna of India, which of the following is/are endangered?

1. Swamp deer           2. Gharial         3. Leatherback turtle

a) 1 and 3 only           b) 2 only

c) 1,2 and 3              d) None of these

Ans:     C

5. “Rainfall is very scanty, the climate is very extreme and the people used to be nomadic herders.”

The above-given statement describes which of the following regions of the world?

a) Siberian Tundra

b) African savannah

c) Central Asian Stepped

d) North American Prairie

Ans:     B

6. National Biodiversity Authority (NBA) helps in protecting Indian agriculture, how?

1. NBA directly monitors and supervises the scientific research on genetic modification of crop plants.

2. Application for Intellectual Property Rights related to genetic/biological resources cannot be made without the approval of the NBA.

3. NBA checks the biopiracy an protects the indigenous and traditional genetic resources.

Choose the right answer from the codes provided below:

a) 2 only        b) 2 and 3 only

c) 3 only        d) 1,2 and 3

Ans:     B

7. How will the National Water Mission impact the country, if it is completely and properly implemented?

1. The expenses incurred by farmers for digging bore-wells and for installing motors and pump-sets to draw ground-water will be completely reimbursed by the Government.

2. Part of the water needs of urban areas will be met through recycling of waste-water.

3. The water requirements of coastal cities with inadequate alternative sources of water will be met by adopting appropriate technologies that allow for the use of ocean water.

4. All the rivers of Himalayan origin will be linked to the rivers of peninsular India.

Choose the right answer from the codes provided below:

a) 2 only               b) 2 and 3 only

c) 1 and 4 only     d) 1,2,3 and 4

Ans:     B

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