Question

seasonal variations in earths climate are caused by ______.
a. earths magnetic field
b. earths tilt
c. earths rotation
d. earths precession

Explanation:

Seasonal climate variations occur because Earth's axis is tilted (about 23.5°) relative to its orbital plane around the Sun. This tilt causes different parts of Earth to receive varying amounts of solar radiation throughout the year, leading to seasons. Earth’s magnetic field (A) protects from cosmic radiation, rotation (C) causes day - night cycles, and precession (D) is a long - term axial wobble, none of which directly cause seasons.

Answer:

B. Earth's tilt