Thursday
April 24, 2014

Homework Help: 6th grade science

Posted by johnnetta on Tuesday, January 13, 2009 at 11:49pm.

1. earth has only a limited amount of land, yet land is a renewable resource, why?
2. trees are renewable resources, but some forests are not, why?
3. compare and contrast minerals and ores.
4. how could using ores contribute to an increase in air pollution?

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