Correct Option
The correct option is (b).
Explanation
Tropical Evergreen Forests (also known as Tropical Wet Evergreen Forests) typically develop in areas receiving heavy rainfall (exceeding 200 cm annually) with a short dry season. These forests are characterized by dense, multi-layered vegetation that remains green throughout the year due to the lack of a distinct shedding season. In India, they are primarily distributed along the western slopes of the Western Ghats, the hills of the Northeastern region, and the Andaman and Nicobar Islands.
Statement-wise Analysis
- 1. Assam: Correct. The Upper Assam region and the hills of Northeastern India receive heavy precipitation, supporting dense Tropical Wet Evergreen forests.
- 2. Tamil Nadu: Correct. While the coastal region of Tamil Nadu is known for Tropical Dry Evergreen forests (receiving winter rainfall), the hilly districts bordering the Western Ghats (such as the Nilgiris and Anaimalai hills) host Tropical Wet Evergreen forests. Therefore, the state has the presence of this vegetation type.
- 3. Rajasthan: Incorrect. Rajasthan is characterized by arid and semi-arid climatic conditions. The natural vegetation here consists primarily of Tropical Thorn Forests and scrubs, adapted to low rainfall (less than 70 cm) and high evaporation. It does not support Tropical Evergreen forests.
- 4. Kerala (Western Ghats): Correct. The windward side of the Western Ghats in Kerala receives very high rainfall from the South-West Monsoon, making it one of the most significant regions for Tropical Wet Evergreen forests in India (e.g., Silent Valley).
Since statements 1, 2, and 4 are correct, and statement 3 is incorrect, option (b) is the correct answer.
Key Takeaway
Tropical Evergreen Forests require annual rainfall above 200 cm and high humidity. In India, they are restricted to the Western Ghats (Kerala, Karnataka, Tamil Nadu), Northeastern Hills (Assam, Meghalaya, etc.), and the Andaman & Nicobar Islands.