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Q72 (IAS/2015) Geography › Indian Physical Geography › Indian forest types Official Key

Consider the following States : 1. Arunachal Pradesh 2. Himachal Pradesh 3. Mizoram In which of the above States do 'Tropical Wet Evergreen Forests' occur?

Result
Your answer: —  ·  Correct: C
Explanation

Tropical Wet Evergreen Forests are found along the Western Ghats, the Nicobar and Andaman Islands, and all along the north-eastern region.[2] These forests occur in North-East India, parts of Western Ghats, the Andaman and Nicobar, upper Assam, lower slopes of Eastern Himalayas, Odisha, along the foot-hills of Himalayas, Bhabhar and Tarai regions.[4]

Both **Arunachal Pradesh** and **Mizoram** are part of the north-eastern region of India, where these forests naturally occur. Tropical Evergreen forests are mainly found in areas recording over 150 cm of average annual rainfall where the temperature varies between 20°C to 27°C.[4]

**Himachal Pradesh**, located in the western Himalayas, does not have the climatic conditions suitable for Tropical Wet Evergreen Forests. Instead, it features temperate and alpine vegetation types due to its higher altitude and cooler climate. The warm and humid conditions with high rainfall required for tropical wet evergreen forests are absent in Himachal Pradesh.

Therefore, among the given states, only Arunachal Pradesh (1) and Mizoram (3) have Tropical Wet Evergreen Forests, making option C the correct answer.

Sources
  1. [1] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 10: Indian Forest > Ro.R.R. Tropical Wet Evergreen Forests > p. 161
  2. [2] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 10: Indian Forest > Ro.R.R. Tropical Wet Evergreen Forests > p. 161
  3. [3] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 5: Natural Vegetation and National Parks > Table 5.5 > p. 14
  4. [4] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 5: Natural Vegetation and National Parks > Table 5.5 > p. 14
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Q. Consider the following States : 1. Arunachal Pradesh 2. Himachal Pradesh 3. Mizoram In which of the above States do 'Tropical Wet Eve…
At a glance
Origin: Mixed / unclear origin Fairness: Moderate fairness Books / CA: 6.7/10 · 0/10
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This is a classic 'Climatic Logic' question sourced directly from NCERT Class XI (India Physical Environment). It tests if you can distinguish between the 'Tropical' foothills of the North East and the 'Temperate' high-altitude belts of the Western Himalayas.

How this question is built

This question can be broken into the following sub-statements. Tap a statement sentence to jump into its detailed analysis.

Statement 1
Do Tropical Wet Evergreen Forests occur in Arunachal Pradesh, India?
Origin: Direct from books Fairness: Straightforward Book-answerable
From standard books
Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 10: Indian Forest > Ro.R.R. Tropical Wet Evergreen Forests > p. 161
Presence: 4/5
“ro.r.r. Tropical Wet evergreen forests \ Wet evergreen forests are found along the Western Ghats, the Nicobar and Andaman Islands, and all along the north-eastern region. It is characterized by tall, straight evergreen trees. The more common trees that are found here are the jackfruit, betel nut palm, jamun, mango, and hollock. The trees in this forest form a tier pattern; shrubs are found over the layer closer to the ground, followed by the short structured trees and then the tall variety.”
Why this source?
  • Explicitly states wet evergreen forests occur 'all along the north-eastern region', indicating presence in the northeastern states.
  • Describes typical species and structure for wet evergreen forests found in that region, supporting the forest-type occurrence there.
Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 5: Natural Vegetation and National Parks > Table 5.5 > p. 14
Presence: 5/5
“The Indian forests were also classified by H.G. Champion (1936) into eleven categories. The main categories according to this classification are as under: 1. Tropical Evergreen: These forests are mainly found in the areas recording over 150 cm of average annual rainfall where the temperature varies between 20oC to 27oC. North-East India, parts of Western Ghats, the Andaman and Nicobar, upper Assam, lower slopes of Eastern Himalayas, Odisha, along the foot-hills of Himalayas, Bhabhar and Tarai regions”
Why this source?
  • Classifies 'Tropical Evergreen' forests and lists 'North-East India' as a primary location for this forest type.
  • Provides a direct linkage between the forest type (tropical evergreen) and the broader northeastern region of India.
Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 10: Indian Forest > rb.1.1r. Montane Wet temperate forests > p. 163
Presence: 3/5
“In the North, Montane wet temperate forests are found in the region to the east of Nepal into Arunachal Pradesh, receiving a minimum rainfall of eooo mm. In the North, there are three layers of forests: higher layer has n-rainiy coniferous, the middle layer has deciduous trees such as the oak and the lowest layer is covered by rhododendron and champa. In the South, it is found in parts of the Niligiri Hills, the higher reaches of Keraia. The forests in the northern region are denser than in the South. Rhododendrons and a variety of ground flora can be found here.”
Why this source?
  • Names Arunachal Pradesh explicitly in the context of Himalayan forest zones, locating the state within northern/northeastern forest regions.
  • Helps connect the general 'north-eastern region' references in other snippets to Arunachal Pradesh specifically (geographic placement).
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