UPSC Prelims 2015— Question 78

Correct answer: Option A. Teak is a characteristic and economically important tree of tropical moist deciduous forests in India. These forests experience a marked dry season but receive more moisture than tropical thorn forests. Tropical rainforests have different dominant assemblages, while temperate forests are associated with cooler climates. Hence tropical moist deciduous forest is correct. Option-wise analysis: Option A: “Tropical moist deciduous forest” is correct. It directly matches the factual or conceptual requirement tested by the question and is supported by the principle explained above. Option B: “Tropical rain forest” is incorrect. It does not match the specific fact, definition, institutional role, geographical association, or constitutional/economic principle required here. The key distinction is the one identified in the core explanation, so this option can be eliminated. Option C: “Tropical thorn scrub forest” is incorrect. It does not match the specific fact, definition, institutional role, geographical association, or constitutional/economic principle required here. The key distinction is the one identified in the core explanation, so this option can be eliminated. Option D: “Temperate forest with grasslands” is incorrect. It does not match the specific fact, definition, institutional role, geographical association, or constitutional/economic principle required here. The key distinction is the one identified in the core explanation, so this option can be eliminated. Prelims takeaway: Focus on the precise institutional role, constitutional provision, geographical association, or technical definition being tested. UPSC questions often place a broadly familiar fact beside a narrowly incorrect qualifier; identifying that qualifier is essential for elimination.