Trees are man’s source of food.

Trees give off carbon dioxide.

Man needs carbon dioxide to live

Orchard is an area of land devoted to the cultivating of fruit or nut tree.

Too many trees cause pollution.

A healthy environment is an environment full of trees.

It is all right to cut trees for as long as they are replenished.

Reforestation is the process of planting new trees in place of old ones that have been cut down

When trees slow down the speed of a typhoon, they act as windbreaker.

Roots of trees hold the soil and water, thus preventing soil erosion and flood.