Tropical, temperate, polar biomes
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UPSC Prelims tests biome characteristics through map-based questions, climate-vegetation correlations, and wildlife distribution. Examiners focus on distinguishing biome boundaries, temperature-precipitation regimes, and soil types rather than exhaustive species lists. Common errors include confusing temperate deciduous with temperate grasslands, or misidentifying polar biome boundaries relative to Arctic/Antarctic circles.
Tropical: hot, wet, biodiversity hotspot, broadleaf evergreen
Temperate: four seasons, deciduous/coniferous, moderate rainfall
Polar: permafrost, tundra, minimal precipitation, extreme cold
Biome defined by climate, vegetation, soil, fauna integration
Latitude drives biome distribution; altitude creates vertical variation