An introductory session on Environmental Science which covers the following topics in less than 8 minutes:
1) Environment
2) Components of Environment
3) Environmental Science
4) Lithosphere, Hydrosphere, Biosphere, and Atmosphere.
5) Natural Resources
6) Environmental Degradation
After watching this session you may also take part in this quiz
Quiz on Environmental Sciences
Here is an assessment for you to solve
Introduction to Environment|Assessment|Worksheet