Give reasons for the following:

Reforestation is encouraged throughout the world.

Trees are the lungs of the earth. It helps to keep the air fresh, maintain the rainfall and balances the climate. It soaks up the pollution and dust from the air including CO₂ and lessens global warming. It also prevents soil erosion. As deforestation has been carried out at a high rate, global warming has highly increased. So to reduce it, reforestation must be practised. So reforestation is encouraged throughout the world.