Some kids were dumping paint in the local pond. What type of water pollution did they cause?

Logging operations used to use a technique called clear-cutting, in which all of the trees in an area are cut down. What type of water pollution will this most likely lead to?

A farmer applies excess fertilizer to one of her fields just before a rainstorm. What kind of pollution is this most likely to lead to?

This type of pollution comes from any heating of natural water that results from human activity

Which of the following is an effect of an oil spill?

At a research lab, a scientist carelessly pours cultures of living microbes down the drain. What type of water pollution does this cause?

What type of pollution is the example:

Water from a river or lake, that is used for cooling powerplants, get warmed up. When that warm water is returned to the river or lake, it is a higher temperature than the river or lake water. This warmer water has less oxygen available for organisms that live in the water.