1. What is the difference between bare soil and covered soil?
2. What are the effects of water cycle in a bare soil?
3. What are the effects of water cycle in covered soil?
4. What soil is better to stop the scarcity of clean water? Why?
5. Do the construction of water dam can be helpful in the water cycle? Why?
6. What are the ways we must do to continue a good water cycle and to stop its scarcity?
check out the video file by clicking on the link below...
http://www.youtube.com/watch?v=og9cQKxlFnE
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