Deforestation

Once you have finished the questions on quarrying. Watch the video here http://www.youtube.com/watch?v=7KSMFIGQ2nI&feature=related and then answer the following questions

Part 4: Deforestation

1. What is deforestation?
2. Why does deforestation occur?
3. What harm does deforestation cause to the environment and to animals/birds/plants?
4. What can be done to try and reduce the effects of deforestation?

Place these answers in the document we have been working on. Include pictures.