A Diverging Plate causes a Mid-oceanic ridge, while a convergaging plates forms a deep sea trench.
HOPE THIS HELPS!! <3 good luck on your assignment :)
This sounds like a question to something your teacher has just recently taught. I'm not sure how he/she wants you to answer but you a welcome to try; caloric intake and exercise frequency. Hope this helped.
An example of a stable system is a chemical reaction that is in equilibrium. A reaction at equilibrium has both forward and backward reactions in which the rate of forward reaction is equal to the rate of the backward reaction. The principle that governs equilibrium reaction is Le Chateliers principle.