Renewable resources include soil, fresh water, wild animals, and

Which approach to resource management aims to harvest resources in ways that minimize impact on the ecosystem and processes that provide the resource?

Which of the following is an economic value of forests?

Clear-cutting is a timber harvesting method in which

The clearing of a forest and its replacement by another land use is called

Prescribed burns are fires that

A renewable resource is harvested sustainably if

A farmer interested in raising healthy crops should look for a

Watering crops by way of human-constructed structures is known as

Your friend tells you she's decided not to use pesticides or synthetic chemicals on her farm; instead she'll rely on composting and biological pest control. She is practicing

Sustainable agriculture is important because while human population continues to grow, one of the following will not.

Traditional agriculture is best defined by its reliance on fossil fuels and mechanization.

If you wanted to farm on a steep hillside, one way to prevent soil erosion would be

Runoff is of a particular concern to environmental scientists because it carries toxicants from large areas of land and

Which of the following is a characteristic of a mineral?

Which rock forms when magma cools slowly below Earth's surface?

Which type of rock forms when layers of weathered materials are pressed together over time?

All minerals

Which is NOT a benefit of recycling minerals?

The Surface Mining Control and Reclamation Act ensures that coal mine owners will restore the land after mining is complete

Only a very small portion of Earth's water is both liquid and

A hole dug into an aquifer to reach groundwater is called a

From greatest to least, rank the primary uses of fresh water around the world.

In the United States, most of the fresh water we use—about 74 percent of it—comes from

As a natural resource, freshwater is

All of the land area that supplies water to a particular river system is included in a(n)

What percentage of the atmosphere is composed of oxygen?

A ratio that compares the amount of water vapor the air contains to the maximum amount that the air could hold at that temperature is

The lowest layer of Earth's atmosphere, the one directly above the ground, is called the

How does carbon monoxide affect human health?

A(n) __________ can trap smog close to the surface. It happens when a layer of cool, dense air stays near the ground and under a layer of warm air.

How does the ozone layer benefit living things on Earth?

Radiation, conduction, and convection are the three main methods of