|
Human Wastes
Besides
creating a health hazard, human waste carries with it a large amount
of oxygen consuming bacteria. Sometimes this is a problem during
floods when sewage treatment plants overflow and are not able to
treat all the water. Raw sewage can spill into the waterway
and introduce bacteria into the water that will use up a large amount
of the available dissolved oxygen.
 
1
| 2
| 3
| 4
| 5
| 6
| 7
| 8
| 9
| 10
Introduction
| Objectives | Pre-Test
| Presentation | Activity
| Post-Test
PEER Curriculum
| Water
Quality Modules |
Teacher's
Pages | Standards
|
