Chapter 9 Unit Review

Front

Why would a larger city have a larger demand for water?

Back

There are more people in cities that need to use water.

Front

Which of these human activities least contributes to land erosion? urban sprawl, planting trees, surface mining, clearing land of vegetation

Back

planting trees

Front

In the United States, what federal agency is responsible for setting standards for safe, clean drinking water?

Back

Environmental Protection Agency (EPA)

Front

What is the term used to describe water that is safe to drink?

Back

potable

Front

What type of area is Chicago, Illinois, with a population of over 2.8 million people?

Back

urban

Front

Which of these is a nonrenewable resource? Options: oil, water, solar energy, wind

Back

oil

Front

Most of Earth's water (about 97 percent) is __.

Back

salt water in the oceans

Front

Different areas are classified according to land use. Which of these areas would likely have the largest human population and the highest levels of air pollution? Options: a rural area, an urban area, a natural area, a suburban area.

Back

an urban area

Front

Aquifer

Back

underground layer of rock or sediment that holds water

Front

Many uses of land, including logging, mining, and farming, expose the soil, which can lead to ___?

Back

erosion