100 - 200 cm
Explanation
In India, natural vegetation is primarily classified based on climatic conditions, specifically the volume of annual precipitation. Tropical Deciduous Forests constitute the most widespread forest type in the country and are subdivided into "Moist" and "Dry" categories based on rainfall availability.
Analysis of Rainfall Ranges
- 100 - 200 cm (Correct): This range characterizes Tropical Moist Deciduous Forests. These forests are found in the northeastern states along the foothills of the Himalayas, the eastern slopes of the Western Ghats, and Odisha. Common species include Teak, Sal, Shisham, and Sandalwood.
- 70 - 100 cm: This range corresponds to Tropical Dry Deciduous Forests. These are found in the rainier parts of the Peninsular plateau and the plains of Bihar and Uttar Pradesh.
- > 200 cm: Regions receiving rainfall exceeding 200 cm typically support Tropical Evergreen and Semi-Evergreen Forests, which are dense and multi-layered.
- < 70 cm: Areas with rainfall below 70 cm generally support Tropical Thorn Forests and Scrubs.
Key Takeaway
Tropical Deciduous Forests, also known as Monsoon Forests, are bifurcated into Moist Deciduous (100–200 cm rainfall) and Dry Deciduous (70–100 cm rainfall).