Chapter 4 Vocabulary

Materials in the natural environment that people value and use to satisfy their needs.

• natural resources

• renewable resources

• nonrenewable resources

• fossil fuels

natural resources that are constantly being regenerated or replaced by the environment.

• natural resources

• renewable resources

• nonrenewable resources

• fossil fuels

natural resources that cannot be replaced or take a long time to be replaced once they have been used.

• natural resources

• renewable resources

• nonrenewable resources

• water power

nonrenewable resources such as coal, oil, and natural gas, which formed from the remains of ancient plants and animals.

• natural resources

• renewable resources

• nonrenewable resources

• fossil fuels

the splitting of uranium atoms in a nuclear reactor to release their stored energy.

• fossil fuels

• nuclear energy

• solar energy

• geothermal energy

uses the energy of falling water to move machinery or generate electricity.

• nuclear energy

• water power

• geothermal energy

• solar energy

energy that comes from the earth's internal heat.

• nuclear energy

• water power

• geothermal energy

• solar energy

energy produced by collecting and storing the sun's energy.

• nuclear energy

• water power

• geothermal energy

• solar energy

economic activities that rely directly upon natural resources.

• primary economic activities

• secondary economic activity

• tertiary economic activity

• quaternary economic activity

people grow only enough food for their own family's or village's needs

• export

• subsistence farming

• cottage industries

• commercial industries