We eat food composed of all the nutrients like carbohydrates, proteins, fats, vitamins, minerals and water. After digestion, these are absorbed in
the form of glucose, amino acids, fatty acids, glycerol etc. What
mechanisms are involved in absorption of digested food and water?

i'm not sure but i think Facilitated transport(The movement of the solute with the help of carrier proteins through a biological membrane. For example digested amino acids are absorbed in this manner.)

Explanation:

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.