FORESTS AND AIR QUALITY

Forests are oxygen _?_. Factories

Forests and Air Quality To grow a pound of wood, a tree uses __________ pounds of carbon dioxide. Answer: 1.47

Forests and Air Quality 2. A tree gives off ___________ pounds of oxygen when producing 1 pound of wood. Answer: 1.07

Forests and Air Quality 3. An acre of trees might grow ___________ pounds of wood a year. Answer: 4,000

Forests and Air Quality 4. An acre of trees use ____________ pounds of carbon dioxide per year. Answer: 5,880

Forests and Air Quality 5. An acre of trees give off ____________ pounds of oxygen in the process of producing wood each year. Answer: 4,280

People need wood for houses.

People Need Wood For Houses. ____________ board feet of lumber for each single family house. Answer: 15,823

People Need Wood For Houses. ____________ square feet of panel products. Answer: 11,408

People Need Wood For Houses. ____________ pounds of paper per year for books, towels, packaging, and all the other products they use. Answer: 681

People Need Wood For Houses. Each person needs _____________ pounds of oxygen per year to breathe. Answer: 365

When a forest gets old and overcrowded: More wood may decay each than grows. As growth stops, trees start to use oxygen rather than yield it.

For every pound of wood which decays, the process reverses: 1.07 pounds of oxygen is used up. 1.47 a pound of carbon dioxide is put back into the air.