The northern and southern hemispheres experience opposite seasons and different day lengths, no matter what time of year. what is the best explanation for these variations in seasons and daylight?
a) the moon orbits in a path around the hemisphere not facing the sun.
b) the hemisphere experiencing winter is the farthest away from the sun.
c) earth's axial tilt changes direction as it orbits the sun, causing seasonal patterns.
d) earth's axial tilt causes one side of earth to be more exposed to the sun than the other.

The correct answer is D. Earth's axial tilt causes one side of Earth to be more exposed to the Sun than the other.

Explanation:

Seasons and therefore daylight in different locations of the Earth are mainly explained through two main factors. The first factor is that Earth orbits around the sun which make different areas of the Earth to be exposed to different intensities of sunlight. Additionally, the differences between Northen and Southern Hemispheres regarding seasons occur due to the Earth's axial tilt that means the Earth is placed obliquely and this makes one of the hemispheres to receive more light than the other and causes seasons to occur in the North and Sout hemisphere at a different time. According to this, the option that explains the variations in seasons and daylight is "Earth's axial tilt causes one side of Earth to be more exposed to the Sun than the other".

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