Which is more important in determining climate changes: Earth's orbit or Earth's tilt on its axis? Why? Please Help..

Earth's axial tilt

Explanation:

The orbit is not that important for climate change during a year. The axial tilt angle is what affects the climate because it determines which parts of the Earth will get more sunlight during different parts of the year. This is why seasons exist on Earth the way they do. The higher the latitude the more intensity of the seasons rises.

answer is  

loa ≅ lma

to prove that the triangles are congruent using the aas congruence