UPSC CSE Prelims 2015

Correct Option

Tropical Wet Evergreen Forests thrive in regions characterized by high annual rainfall (typically over 200 cm) and consistently warm temperatures throughout the year, with a short or absent dry season. These forests exhibit a multi-layered structure and high biodiversity.

• Arunachal Pradesh: The eastern lowland and foothill regions of Arunachal Pradesh, particularly those bordering Assam, receive abundant rainfall and maintain a warm, humid climate, which supports dense tropical wet evergreen forests. This area is recognized as part of the Indo-Burma biodiversity hotspot.
• Mizoram: Situated in the northeastern tropical belt, Mizoram experiences significant annual precipitation, creating optimal conditions for the widespread occurrence of tropical wet evergreen forests.

Incorrect Options

• Himachal Pradesh: This state is predominantly characterized by a temperate to alpine climate due to its high altitudes and mountainous topography. Its natural vegetation primarily consists of temperate deciduous, coniferous, and alpine forest types, which are distinct from tropical wet evergreen forests that require specific climatic conditions of high heat and humidity at lower elevations.

Therefore, options that include Himachal Pradesh or exclude either Arunachal Pradesh or Mizoram are factually incorrect.