Exam 11: Water: Resources and Pollution

All of the following are example of point source pollution,except

A country's renewable water supplies are generally made up of

________ is a point source of water pollution;________ is a nonpoint source of water pollution.

The amount of groundwater that can fill the spaces found in soil and rock is determined by the

The residence time for an average water molecule in the ocean is about ________ years.

Plants that take up heavy metals found in water would be an example of

Use the following graph for the question. -On the graph of clean drinking water per person,each letter represents a country.Which of the following is most likely?

What would you not find in water that has been through tertiary treatment?

Application of fertilizer to farm fields is an example of cultural eutrophication.

Which of the following is a nonpoint source of water pollution?

In general,water use in poor countries is dominated by

The hydrologic cycle distributes water across the globe.Which part of the hydrologic cycle refers to the water vapor released by plants?

The main reason that surface water pollution has largely decreased in the United States since 1950 is

The heating of natural waterways by power plants and other industrial facilities is a form of water pollution.

The place where aquifers are most likely to be contaminated is at

The total amount of water on the Earth ________ from year to year and the hydrologic cycle ________.

Coliform bacteria populations are routinely monitored in drinking water supplies,swimming pools,and at beaches because these bacteria

Based on Figure 11.11,water availability per person per year is lowest in these two countries:

Which of the following factors is the most important factor in determining whether a country is "water rich" or "water poor"?

Raw sewage would contribute to the biochemical oxygen demand of a stream and cause fewer organisms to be present.