Refraction occurs when light passes from one medium to another.
<h3>What is Refraction?</h3>
This is defined as the change in direction of a wave passing from one medium to another. This is usually caused by its change in speed.
It also involves bending of light rays when passing through a boundary which contains two media as a result of a change in speed and direction of insolation.
Cyclones and ocean currents transport heat towards the poles
Explanation:
The reason why the tropics is not getting hotter and the poles not getting colder is due to the activities of cyclones and ocean currents which transport heats towards the poles thus enabling the temperatures at the tropics and the poles to remain fairly constant.
