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In which one of the following habitats does the diurnal temperature of soil surface vary most?

1. Shrub land
2. Forest
3. Desert
4. Grassland

Correct answer: Desert

Solution

Deserts have sparse vegetation, very low moisture, and little shading, so the soil surface absorbs intense sunlight by day and loses heat rapidly at night. This produces the largest diurnal temperature variation among the options.

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