Chapter 4

Question 1

natural resources

Answer 1

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

Question 2

nonrenewable resources

Answer 2

cannot be replaced once they are used

Question 3

fossil fues

Answer 3

nonrenewable resources including coal, oil, natural gas

Question 4

Nuclear energy

Answer 4

electricity created through fission

Question 5

water power

Answer 5

energy of falling water to generate electricity

Question 6

geothermal energy

Answer 6

energy from earth’s internal heat

Question 7

solar energy

Answer 7

energy from the sun

Question 8

Primary economic activities

Answer 8

rely on natural resources

Question 9

subsistence farming

Answer 9

growing only enough food for family or village

Question 10

commercial farming

Answer 10

growing food for sale in markets

Question 11

secondary economic activites

Answer 11

use raw material to make new things

Question 12

tertiary economic activities

Answer 12

service industries

Question 13

cottage industry

Answer 13

take place in or near people’s hones

Question 14

commercial industry

Answer 14

large amounts of manufactured goods

Question 15

exports

Answer 15

goods sent out from a country

Question 16

imports

Answer 16

good brought into a country

Question 17

trade balance

Answer 17

a balance between imports and exports