Water Pollution — Unit test Answers

Which of the following regulations is the primary law regarding water pollution?

Which of the following is not an example of mechanical control of nonnative species?

Flooding on rivers is caused by human activity rather than natural events.

The use of wells to obtain drinking water is a modern convenience.

Recreational activities can cause an increase in erosion rates.

All of the following are true of the Zebra mussels found in the Great Lakes EXCEPT:

Why are cane toads in Australia considered an invasive species rather than simply nonnative?

Which of the following best explains the importance of water to humans?

Which of the following is a consequence of water polluted by human sewage?

Cane toads are highly successful as an invasive species in Australia because there is only one species that is believed to be able to prey on them.

Which of the following human activities do not require water?

The organisms found in rivers and streams vary based on location.

Why might it be beneficial to regulate what species of plants and animals people are allowed to own in particular environments?

Which of the following is least likely to have difficulties with economic access to potable water?

What is a key difference between greywater use and water reclamation?

Which area of rivers and streams will most likely contain the most sediment?

The defining characteristic of potable water is that it _______.