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hich of the following statements about Tropical Evergreen and Semi Evergreen Forests are true?

They are found in areas with annual precipitation exceeding 200 cm and a mean temperature above 22°C.

Semi Evergreen forests have a mix of evergreen and moist deciduous trees with evergreen undergrowth.

These forests are primarily located in the arid regions of Rajasthan and Gujarat.

A1 and 2

B1 and 3

C2 and 3

D1, 2, and 3

Answer:

A. 1 and 2

Read Explanation:

Tropical Evergreen Forests:

  • Climate: These forests thrive in regions receiving **annual rainfall exceeding 200 cm** and maintaining a **mean annual temperature above 22°C**.
  • Characteristics: They are characterized by a dense, multi-layered canopy with trees reaching heights of up to 60 meters. The vegetation is evergreen, meaning trees do not shed their leaves seasonally.
  • Biodiversity: These forests support a rich diversity of flora and fauna due to the consistent warm and wet conditions.
  • Location: Found along the Western Ghats, Northeast India, and the Andaman and Nicobar Islands.

Tropical Semi-Evergreen Forests:

  • Characteristics: These forests represent a transition between evergreen and moist deciduous forests. They contain a **mix of evergreen and moist deciduous tree species**.
  • Canopy: While predominantly evergreen, they have a significant presence of deciduous trees that shed leaves for a short period. The undergrowth is typically dense and includes evergreen species.
  • Climate: They are found in areas with slightly lower rainfall than evergreen forests, typically between 150-200 cm annually, but still with warm temperatures.
  • Location: Often found adjacent to tropical evergreen forests, in regions like the Eastern Himalayas, parts of the Western Ghats, and the Andaman Islands.
  • Distinction from Arid Regions: These forests are found in humid, high-rainfall zones and are **not located in the arid regions of Rajasthan and Gujarat**, which are characterized by dry deciduous and thorny forests.

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Which of the following statements about Montane Forests are true?

  1. Southern mountain forests in the Nilgiris are called Sholas.

  2. Deodar is an important species in the western Himalayas.

  3. These forests are found in areas with rainfall less than 50 cm.