Section 1: Landforms

Section 2: The Hydrosphere

Section 3: Natural Resources

CHAPTER 4Landforms. Water, and Natural Resources

SECTION 1

Landforms

Question:By which processes do weathering and erosion wear down the land?

SECTION 1

Landforms

Weathering and ErosionWeathering and Erosion

Erosion

chemical processes• substances in air and water

water• rainfall• rivers• waves

wind• abrasion• from one place to another

ice• glaciers

Weathering

physical processes• heating and cooling• freezing and thawing• tree roots

SECTION 2

The Hydrosphere

Question:What roles do evaporation, condensation, and precipitation play in the hydrologic cycle?

SECTION 2

The Hydrosphere

Evaporation:energy transforms water into vapor.

Condensation:as water vapor rises it forms droplets.

Surface Water

Precipitation:droplets may become heavy enough to fall as rain, snow, or hail.

SECTION 3

Natural Resources

Question:What are the causes and effects of air pollution?

SECTION 3

Natural Resources

Causes:Factories and automobiles burn fuel, releasing smoke

and fumes into the atmosphere.

Effects:

Causes acid rain, which

can damage treesand kill fish in lakes;

may damage the ozone layer; presents a threat to

human health

1. What are the three types of movements possible at plate boundaries?

2. What are the two physical processes that wear down landforms on Earth’s surface?

3. What process makes some inland lakes salty?4. What are two short-term effects of air

pollution?5. What is a major drawback of using coal as an

energy source?

1. What are the three types of movements possible at plate boundaries?

2. What are the two physical processes that wear down landforms on Earth’s surface?

3. What process makes some inland lakes salty?4. What are two short-term effects of air

pollution?5. What is a major drawback of using coal as an

energy source?

CHAPTER 4

Chapter Wrap-Up