1. CHAPTER 7: ENVIRONMENTAL IMPACTS

2. Lesson 4: Impacts on the atmosphere

3. ?? Essential Questions What are some types of air pollution?
How are global warming and the carbon cycle related?
How does air pollution affect human health?
What actions help prevent air pollution?

4. Vocabulary Photochemical smog Acid precipitation Particulate matter
Global warming
Greenhouse effect
Air Quality Index

5. Importance of Clean Air
Your body, and the bodies of other animals, uses oxygen in air to produce some of the energy it needs. Many organisms can survive for only a few minutes without air. But the air you breathe must be clean or it can harm your body

6. Types or Air Pollution Smog
Photochemical smog is caused when nitrogen and carbon compounds in the air react in sunlight
Acid precipitation is rain or snow that has a lower pH than that of normal rainwater

7. Types or Air Pollution Particulate Matter CFCs Carbon Monoxide
The mix of both solid and liquid particles in the air is called particulate matter
CFCs
Carbon Monoxide

8. Global Warming and the Carbon Cycle
Global Warming is an increase in Earth’s average surface temperature
Effects of Global Warming
The Greenhouse Effect
The greenhouse effect is the natural process that occur when certain gases in the atmosphere absorbs and reradiate thermal energy from the Sun

9. The Carbon Cycle

10. The Greenhouse Effect

11. Health Disorders Measuring Air Quality
The Air Quality Index (AQI) is a scale that ranks level of ozone and other air pollutants

12. Positive Actions National Initiatives Cleaner Energy How can you help?
In USA, the Clean Air Act sets limits
Cleaner Energy
Using renewable energy resources
How can you help?
Reducing energy: Turn the thermostat down, walk to the store or use public transportation, etc.

13. Homework
Workbook: Page 228 – 229 Textbook: Page 244 #1, 2, 3, 4, 5, 7 & 9 Write down questions and answers. Turn them into me