Question

As the Earth rotates on its axis and revolves around the Sun, the Earth goes through seasonal changes. Why does this happen?

Answer 1

Answer:

B

Explanation:

The Earth goes through seasonal changes because the Earth's axis is tilted.

Because the Earth's rotational axis is tilted, the Northern Hemisphere sometimes tilts toward the Sun, and sometimes it it tilts away from the Sun. Summer occurs in the Northern Hemisphere while it tilts toward the Sun and receives more sunlight. Winter occurs in the Northern Hemisphere while it tilts away from the Sun and receives less sunlight.

When the Northern Hemisphere tilts toward the Sun, the Southern Hemisphere tilts away from the Sun. The opposite is also true. So, the seasons are always opposite in the Northern and Southern Hemisphere. For example, when it is winter in the Northern Hemisphere, it is summer in the Southern Hemisphere.

Answer 2

Answer: The answer is B: Because the earth's axis is tilted.

Explanation:

Instead, Earth has seasons because our planet's axis of rotation is tilted at an angle of 23.5 degrees. The tilt in the axis of the Earth is called its obliquity.