What Is Afforestation And Deforestation?

Afforestation is planting the trees where as deforestation is cutting down the trees.
  -Apurva.y

Afforestation is planting of trees or seeds in order to transform open land into a forest; whereas on the other hand deforestation is the cutting down of trees. Hope you get what I mean

Afforestation means planting of trees and deforestation means cutting down of trees

Afforestation in simple words mean planting and nurturing plants into trees,usually helpful trees.

Afforestation is planting of more trees 
deforestation is cutting down of trees