Humans and Our Planet (Chapters 24, 25, & 26)

What are resources provided by Earth, such as organisms, nutrients, rocks, water, and minerals?

• Natural Resource

• Renewable Resource

• Nonrenewable Resource

What is a natural resource that can be replaced by nature as quickly as it is used, such as fresh air, fresh surface water in lakes, rivers, and streams, groundwater, fertile soil, solar energy, and all living things and elements that cycle through Earth's systems?

• Natural Resource

• Renewable Resource

• Nonrenewable Resource

What is a resource that exists in a fixed amount in Earth's crust and can be replaced only by geological, physical, and chemical processes that take millions of years, such as fossil fuels, diamonds and gemstones, and elements (i.e. gold, silver, and copper)?

• Natural Resource

• Renewable Resource

• Nonrenewable Resource

What is the replacement of renewable resources at the same rate at which they are consumed?

• Sustainable Yield

• Desertification

• Nitrogen-Fixing Bacteria

• Desalination

• Pollutant

What is the process where productive land becomes desert because of the loss of topsoil?

• Sustainable Yield

• Desertification

• Nitrogen-Fixing Bacteria

• Desalination

• Pollutant

What are bacteria that live in water or soil, or grow on the roots of some plants, and can capture nitrogen gas?

• Sustainable Yield

• Desertification

• Nitrogen-Fixing Bacteria

• Desalination

• Pollutant

What is the process of removing salt from seawater to provide freshwater?

• Sustainable Yield

• Desertification

• Nitrogen-Fixing Bacteria

• Desalination

• Pollutant

What is a substance that enters Earth's geochemical cycles and can harm the well-being of living things or affect their activities?

• Sustainable Yield

• Desertification

• Nitrogen-Fixing Bacteria

• Desalination

• Pollutant

What is a mixture of sand, gravel, and crushed stone that accumulates naturally and is found in floodplains, alluvial fans, or glacial deposits?

• Aggregate

• Bedrock

• Ore

• Tailings

What is unweathered, solid rock that can consist of limestone, marble, granite, or other quarried rock?

• Aggregate

• Bedrock

• Ore

• Tailings