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Please continue to do your research on the Internet. Answer the following questions on paper:

1) What is passive solar energy? How can we use it in our homes? Draw a picture to show how it works.

2) How can we harvest rainwater in our homes? Again, draw a picture to explain how it works.

3) What is greywater? How do people use it? What do you think about the idea?

4) What is a carbon tax? Do you think it is a good method to help save the environment?