With reference to Indian forests, consider the following pairs: 1. Tropical Moist Deciduous Forest: Sandalwood (Santalum album) 2. Tropical Dry Deciduous Forests: (Shorea robusta) 3. Tropical Thorn Forests: Shisham (Dalbeigia sissoo) Which of the pairs given above is/are correctly matched?

Pair 2 is correctly matched: Sal (Shorea robusta) is a dominant and characteristic species of Tropical Dry Deciduous Forests, particularly in large parts of North and Central India. Pair 1 is also generally considered correct in the context of forest distribution: Sandalwood (Santalum album) is predominantly found in the dry deciduous forests of South India but also occurs in transition zones and some areas classified as moist deciduous forests, allowing for this pairing to be considered correct. Pair 3 is incorrectly matched: Shisham (Dalbergia sissoo) is typically found in moist and dry deciduous forests, often along river banks, but not in Tropical Thorn Forests, which are adapted to arid and semi-arid conditions.