23 February 2014

Science 12.6 Conserving America's Forests

1. What is a sustainable forest?
A forest that has been approved for forestry, that is meant to create more wood than before.

2. How long does it take a forest to renew itself naturally?
Fifty years

3. List five beneficial effects of prescribed burn.
*Get rid of diseases 
*Burn unwanted plants
*Restore wildlife food supplies
*Remove debris
*Renew the forest floor

4. What are the five major categories of tree-attacking insects?
*Leaf Miner
*Spruce Bark Beetle
*Tortrix Moth Caterpillar
*Spruce Aphid
*Gall

5. Why would a crown fire be more destructive to a forest than a groud fire or a surface fire?

Because is can spread faster if a wind comes along, and they are the types of fires that take peoples homes away and occasionally lives

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