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Chapter 4


Natural resource A material in the natural environment that people value and use to satisfy their needs.
Renewable resource A natural resource that the environment continues to supply or replace as it is used.
Nonrenewable resource A natural resource that cannot be replaced once it is used.
Fossil fuel Any one of several nonrenewable mineral resources formed from the remains of ancient plants and animals and used for fuel.
Nuclear energy A type of energy produced by fission- the splitting of uranium atoms in a nuclear reactor, releasing stored energy.
Water power Energy produced from falling water to move machinery or generate electricity.
Geothermal energy Energy produced from the earths intense interior heat.
Solar energy Energy produced by the sun.
Primary economic activity An economic activity that takes or uses natural resources directly, such as fishing or mining.
Subsistence farming Farming that provides only enough for the needs of a family or a village.
Commercial farming The raising of crops and livestock for sale in markets.
Secondary economic activity An economic activity in which people use raw materials to produce or manufacture new products of greater value.
Cottage industry A small scale manufacturing operation using little technology, often located in or near peoples homes.
Commercial industry A large scale manufacturing operation that employs many people and produces large quantities of goods.
Tertiary economic activity An economic activity in which people do not directly gather or process raw materials but pursue activities that serve other; service industry.
Quaternary economic activity an economic activity that focuses on the acquisition, processing, and sharing of information, such as education or research.
Export An item that is sent out of the country for sale.
Import An item that is brought into the country for sale.
Created by: jenniferbarron