How important are trees to man?

Trees are very important to man due to the following reasons:

1. Trees provide timber for house-making and furniture, fuel, fruits, herbs, honey, bamboo, canes and fibres.
2. Trees help to purify the air by absorbing carbon dioxide and other pollutants, and releasing oxygen.
3. Trees can help to reduce soil erosion by holding the soil in place with their roots. They also prevent floods.
4. They provide raw material to many industries, e.g., paper.
5. Trees can also provide food, medicine, and other resources for humans.