Chapter 4 Earth's Resources

Question 1

Renewable resources

Answer 1

Those that can be replaced by earth’s natural processes

Question 2

Soil conservation

Answer 2

Protecting the soils ability to nourish plants

Question 3

Crop rotation

Answer 3

System of growing different crops on the same land over a period of years

Question 4

Erosion

Answer 4

Soil that can wash or blow away

Question 5

Terraces

Answer 5

Horizontal ridges like stairs that slows water which slows erosion

Question 6

Desertification

Answer 6

The long term process of losing soil fertility and plant life

Question 7

What are some ways farmland can be lost

Answer 7

From erosion or desertification

Question 8

Deforestation

Answer 8

The loss of forest

Question 9

Reforestation

Answer 9

The process of planting trees to replace forest

Question 10

Semi arid

Answer 10

Regions that receive a small amount of rain

Question 11

What methods do people in dry regions use to bring water in

Answer 11

The build canals,reservoirs, and aqueducts which are artificial channels for carrying water

Question 12

Aquifer

Answer 12

Water deep underground

These are water bearing layers of rock sand or gravel

People drill wells to get water from aquifers

Question 13

Desalination

Answer 13

Machines that take the salt out of seawater

This is very expensive

Question 14

Mild acid rain

Answer 14

When air pollution combines with moisture

Question 15

Non renewable resources

Answer 15

Resources that cannot be replaced by natural processes or that are replaced very slow

Question 16

How many basic properties do minerals have

Answer 16

4

Question 17

Minerals are

Answer 17

• inorganic
• occur naturally
• solids
• in crystal form
• unlike petroleum which is a liquid
• have a definite chemical composition or combination of elements

Question 18

What two categories are minerals divided into

Answer 18

Metallic and nonmetallic

Question 19

Metallic minerals

Answer 19

Are shiny and conduct heat and electricity

Question 20

Nonmetallic minerals

Answer 20

Lack the characteristics

Have a dull surface and are poor conductors of heat

Question 21

3 main fossil fuels

Answer 21

Coal
Petroleum
Natural gas

Question 22

Fossil fuels are formed from

Answer 22

Ancient remain from plants and animals

These remains were gradually converted over time and the combination of heat and pressure change them into fuels

Question 23

Fossil fuels are non renewable or renewable resources

Answer 23

Non renewable

Question 24

What is the cleanest burning fossil fuel

Answer 24

Natural gas

Question 25

What can pollute the air

Answer 25

Burning fuels for heating, transportation, and to power factories that release bad chemicals into the air