A. Cloud cover
A.
B. Vegetation cover
B.
C. Angle of the sun's rays
C.
D. The Earth's magnetic field
D.
Correct Answer: D
সঠিক উত্তর: D
Explanation
ব্যাখ্যা
The Earth's albedo is influenced by cloud cover, vegetation (like forests vs. deserts), and the angle at which the sun's rays strike the surface (higher at the poles). The magnetic field does not directly determine how much solar energy is reflected from the surface or atmosphere.