451: Consider the following:

1. Star tortoise

2. Monitor lizard

3. Pygmy hog

4. Spider monkey

Which of the above are naturally found in India?

(a) 1 and 4 only
(b) 2 and 3 only
(c) 1, 2 and 3 only
(d) 1, 2 and 3 and 4
Explanation:
The Indian star tortoise (Geochelone elegans) is a species of tortoise found in dry areas and scrub forest in India and Sri Lanka. This species is quite popular in the exotic pet trade.

Monitor Lizards are large reptiles found in Africa and all across Asia, including the surrounding seas.

The pygmy hog (Porcula salvania) is an endangered species of small wid pig, previously spread across India, Nepal, and Bhutan, but now only found in Assam.

Spider monkeys are found in tropical forests of Central and South America, from southern Mexico to Brazil.
Hence option 4 is not correct whereas all the other options are correct.
452: In which of the following regions of India are you most likely to come across the 'Great Indian Hornbill' in its natural habitat?

(a) Sand deserts of northwest India
(b) Higher Himalayas of Jammu and Kashmir
(c) Salt marshes of western Gujarat
(d) Western Ghats
453: Government of India encourages the cultivation of 'sea buckthorn'. What is the importance of this plant?

1. It helps in controlling soil erosion and in preventing desertification.

2. It is a rich source of biodiesel.

3. It has nutritional value and is well-adapted to live in cold areas of high altitudes.

4. Its timber is of great commercial value.

Which of the statements given above is /are correct?

(a) 1 only
(b) 2, 3 and 4 only
(c) 1 and 3 only
(d) 1, 2, 3 and 4
Explanation:
This is the plant which can grow in cold areas of high altitude regions and can be easily used for soil conservation.
454: Consider the following statements:

1. Silent Valley national Park is in the Nallamalai range.

2. Pathrakkadavu Hydroelectric Project is proposed to be built near the Silent Valley national Park.

3. The Kunthi river originates in Silent Valley's rainforests.

Which of the statements given above is/are correct?

(a) 2 only
(b) 1 and 3
(c) 2 and 3
(d) 1, 2 and 3
455: Which of the following is/are tributary tributaries of Brahmaputra?

1. Dibang
2. Kameng
3. Lohit

Select the correct answer using the code given below.

(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3