Assigned Feb 8th 1.) What is environmental science? 2.) Why is Canada such a "resource-rich nation" ? 3.) Explain the expansionist and ecological approach on conservation? 4.) Outline the expansionist and ecological world views on conservation?   Assigned Feb 21   1.) List and briefly explain the main environmental problems listed below.   a) Overpopulation b) Depletion of resources (renewable and non-renewable) c) Pollution d) Extinction 　　 2.) Define and explain the differences between developed countries and developing countries?