Q. Which of the following one of the following reflects back more sunlight as compared to other three

Explanation by: Mr. Dubey

The ability of a surface to reflect sunlight is measured by its albedo. Higher albedo means more sunlight is reflected. Let's analyze each option:
Sand desert → (A)
Reflects sunlight but also absorbs a significant amount. Albedo: ~30-40%
Prairie land → (B)
Grasslands absorb more sunlight than deserts. Albedo: ~15-25%
Land covered with fresh snow → (C)
Fresh snow has the highest albedo among natural surfaces, reflecting 80-90% of sunlight.
Paddy crop land → (D)
Croplands, especially with water, absorb more sunlight. Albedo: ~10-20%
Since fresh snow reflects the most sunlight compared to the other options, the correct answer is (C) Land covered with fresh snow.