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GeographyMediumAsked in: UPSC CAPF · CAPF 2019, Paper I

Which one of the following states of India has the largest area under dense evergreen forest cover ?

  1. A.Himachal Pradesh
  2. B.Arunachal Pradesh
  3. C.Karnataka
  4. D.Uttarakhand

Correct answer

B. Arunachal Pradesh

Explanation

The correct answer is B, Arunachal Pradesh. Its heavy rainfall, warm humid foothills and low population give it the largest stretch of dense evergreen forest among these states.

Arunachal Pradesh is among the most heavily forested states of India, with nearly four-fifths of its area under forest. The lower valleys and foothills, which receive well over 200 cm of rain a year, carry tropical wet evergreen and semi-evergreen forests, while higher up there are subtropical, temperate and alpine forests. Its forest area is second only to Madhya Pradesh in total, but Madhya Pradesh's forests are mostly dry deciduous. In India, tropical evergreen forests are found mainly in the North-East, the Western Ghats and the Andaman and Nicobar Islands.

A is wrong: Himachal Pradesh has mainly temperate coniferous and broadleaf forests, not evergreen rainforest.

C is wrong: Karnataka has evergreen forests along the Western Ghats, but over a much smaller area than Arunachal Pradesh.

D is wrong: Uttarakhand's forests are mostly sal, pine, oak and deodar, which are deciduous or temperate.

Exam tip: Tropical evergreen forests in India: North-East, Western Ghats, Andaman and Nicobar; they need over 200 cm of rain.

Practice Questions

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Q1.GeographyAsked in: CDS · CDS-I 2018, GKHard

Statement I : Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun and the rotation of the Earth.

Statement II : The Earth rotates from west to east.

  1. A.Both the statements are individually true and Statement II is the correct explanation of Statement I
  2. B.Both the statements are individually true but Statement II is not the correct explanation of Statement I
  3. C.Statement I is true but Statement II is false
  4. D.Statement I is false but Statement II is true
Show answer
Correct answer: B. Both the statements are individually true but Statement II is not the correct explanation of Statement I

Both statements are true, but the direction in which the Earth spins does not explain why tides occur. Tides are caused mainly by the Moon's pull, with the Sun adding a smaller pull; the Moon's tide-raising force is roughly twice the Sun's because it is so much closer.

Q2.GeographyAsked in: UPSC CAPF · CAPF 2023, Paper IMedium

Consider the following statements :

1. Many of the world's largest mountain chains exist beneath the sea.

2. Some mountain chains are revealed as island arcs.

3. The mid-oceanic ridges form the longest mountain chains.

4. The mid-Atlantic ridge rises thirty-three metres above the floor of the Atlantic.

Which of the statements given above are correct ?

  1. A.1 and 2 only
  2. B.3 and 4 only
  3. C.1, 2 and 4 only
  4. D.1, 2 and 3 only
Show answer
Correct answer: D. 1, 2 and 3 only

Statement 4 is wrong: the Mid-Atlantic Ridge rises thousands of metres above the ocean floor, not thirty-three metres. The ocean floor has relief as varied as the land.

Q4.GeographyAsked in: UPSC CAPF · CAPF 2023, Paper IMedium

Consider the following statements :

1. The Great Northern Plains are formed by basins of three distinct river systems - the Indus, the Ganga and the Brahmaputra.

2. They are one of the most densely populated areas on Earth.

3. Between the Yamuna at Delhi and the Bay of Bengal, nearly 1600 km away, there is a drop of only 200 metres in elevation.

Which of the statements given above are correct?

  1. A.1, 2 and 3
  2. B.2 and 3 only
  3. C.1 and 2 only
  4. D.1 and 3 only
Show answer
Correct answer: A. 1, 2 and 3

All three statements correctly describe the Northern Plains of India. The Northern Plains were built from alluvium laid down by the Indus, the Ganga and the Brahmaputra and their tributaries, which together drain the Himalayas.