Reverse faults appear on places where there are ocean-continental and continental-continental convergent boundaries, and they are the total opposite of what the normal faults represent. If the hanging wall rises relative to the footwall, than we have reverse fault. This type of faults occur on places that are undergoing a compression/squishing.
The main reason why Earth is warmer at the equator than at the North and South Poles are thats where the sunlight shines at a lot of times. The sunlight never really shines directly at the North and South Poles like it does with the equator.
