Which factors of Earth's position would contribute to long-term climate change?

A) its elliptical orbit and tilt on its axis

B) its distance from other planets and the tilt on its axis

C) the tilt on its axis and distance from the moon

D) its distance from the moon and its elliptical orbit

Option (A)

Explanation:

The type of season and climate that earth experiences at different places are due to the earth's tilt and because of the earth's elliptical orbit. During its motion along the elliptical path, the earth moves from one place to another, as a result of which the distance from the sun increases and decreases at various location. This is one of the factors why one experiences a different type of seasons. The earth is tilted at an angle of 23.5°, and the northern hemisphere experiences summer when the earth's tilt is towards the sun, and the opposite side experiences winter.

When this tilt of the earth will change along with the change in its orbital path, then there will be simultaneous changes in the climate and seasons, which could lead to long term change in the earth's climate.

Thus, the correct answer is option (A).