... assessment can't be neglected since different ecosystems may react differently to different sources of pollution. The major obstacle facing the biological approach is determining the baseline characteristics for biological communities for each type of water bodies. These results were reached through, investigating the biological and chemical aspects of the ecosystem and the relationship ... in which all pollution sources and habitat conditions in a watershed are considered in developing strategies for restoring and maintaining a healthy ecosystem. All ecosystems that support plant, animal...

• Word Count: 1076
• Approx Pages: 4
• Grade Level: Graduate