Factors That Affect Water Quality

The video discusses the importance of clean water and the factors affecting its quality: physical, chemical, and biological. Physical factors include surface runoff and erosion, which can carry pollutants into water bodies. Chemical factors involve agricultural practices where chemicals used on crops can enter the water cycle. Biological factors include the decomposition of organic matter, which can also impact water quality. Understanding these factors is crucial for protecting drinking water.

What role do biological factors play in affecting water quality?

Why is it important to protect the world's drinking water?