WORLD GEOGRAPHY TODAY
 Red Flag Questions
Pages 74-81
CHAPTER 4: LANDFORMS, WATER, AND NATURAL RESOURCES
SECTION 3: Natural Resources
By the end of this section, you will be able to answer these questions:
1. Why are soil and forests important resources?
2. What are the concerns about water quality and air quality?
3. What are some of the ways minerals are used?
4. What are the main energy resources, and how are they used?
SOILS AND FORESTS

What are resources?

What are renewable resources?

What are nonrenewable resources?
Soil Building

What is soil?

humus

What must be present in the soil to support life?

What three factors are important to the composition of soil?

A horizon

B horizon

C horizon

leaching
Sustaining Soil Resources

Why is maintaining the A horizon particularly important?

contour plowing

soil exhaustion

crop rotation

Why is crop rotation important?

irrigation

soil salinization

What can cause soil salinization?
Forests

deforestation

What are the main causes of deforestation?

reforestation
AIR AND WATER
Air

What is smog?

acid rain

What long-term change can air pollution cause?

Why is the damaging of the ozone layer important?
Water

aqueducts

aquifers

fossil water
MINERAL RESOURCES

What are minerals?
Uses of Minerals

What are some of the uses of minerals?

ore
Mineral Recycling

What are some of the advantages of recycling minerals?
ENERGY RESOURCES

What are fossil fuels? Give examples?

What is one problem with nuclear power?
Fossil Fuels

What are some of the uses for coal?

What are some disadvantages of burning coal?

What are some of the products made from petroleum (oil) today?

Why is it better to burn natural gas than coal?

What are petrochemicals? Give some examples.
Renewable Energy Resources

hydroelectric power

How much of America’s electricity is produced by hydroelectric power?

Why is the use of wind power limited?

geothermal energy

Where are geothermal plants built?

How do solar panels work?