Water pollution

Can all human activities have and do have an adverse impact on water?
Yes
Not
Does direct and diffuse source pollution come from urban or rural populations?
Yes
Not
Changes in habitats can result from?
Physical alteration through dams
Channeling and dredging of rivers
Bottom trawling by fishing boats
All of the above
In what discipline do key pollutants include nutrients, pesticides, sediment, and fecal microbes?
Gardening
Agriculture
Mining
Zoology
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