A colorless gas present in the air that is given off by trees.

A major source of of fiber in the production fo pulp and paper.

It is naturally present in the air that is given off during respiration and is absorbed by plants and trees in photosynthesis.

it is a processed wood used to construct houses for both man and animals.

Considered as one of the several factors in planting fruit-bearing trees.

One of the valuable products of trees many people are using everyday.

Gradual reduction of soil that is prevented by the root system of trees.

It is derived from the sap of some trees.

A product of refined rubber and resins.