Microorganisms are used to help clean dirty water. Why is this step of water treatment important?(1 point)
A. to determine how dirty the water really is
B. because water contains a lot of bulky trash
C. so that clean water can be used to grow crops
D. to help channel water to different areas
D. to help channel water to different areas
The correct answer is A. to determine how dirty the water really is.
Using microorganisms in the water treatment process is important because it helps determine the level of contamination in the water. Microorganisms are used to perform biological tests that can indicate the presence of pollutants, such as bacteria or organic matter. This step allows water treatment facilities to understand the quality of the water and take appropriate measures to purify it before it is released for various uses, such as irrigation or consumption.