Section 2: The Hydrosphere Section 3: Natural Resources CHAPTER 4 Landforms. Water, and Natural Resources Section 1: Landforms Section 2: The Hydrosphere Section 3: Natural Resources
SECTION 1 Landforms Question: By which processes do weathering and erosion wear down the land?
Weathering and Erosion SECTION 1 Landforms Weathering and Erosion Weathering Erosion physical processes • heating and cooling • freezing and thawing • tree roots chemical processes • substances in air and water water • rainfall • rivers • waves wind • abrasion • from one place to another ice • glaciers
SECTION 2 The Hydrosphere Question: What roles do evaporation, condensation, and precipitation play in the hydrologic cycle?
The Hydrosphere SECTION 2 Condensation: as water vapor rises it forms droplets. Evaporation: energy transforms water into vapor. Precipitation: droplets may become heavy enough to fall as rain, snow, or hail. Surface Water
Question: What are the causes and effects of air pollution? SECTION 3 Natural Resources Question: What are the causes and effects of air pollution?
Natural Resources SECTION 3 Effects: Causes acid rain, which can damage trees and kill fish in lakes; may damage the ozone layer; presents a threat to human health Causes: Factories and automobiles burn fuel, releasing smoke and fumes into the atmosphere.
Chapter Wrap-Up CHAPTER 4 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?