16 2 Air Quality KEY CONCEPT Fossil fuel
- Slides: 14
16. 2 Air Quality KEY CONCEPT Fossil fuel emissions affect the biosphere.
16. 2 Air Quality Pollutants accumulate in the air. • Pollution is any undesirable factor added to the air, water, or soil. • Smog is one type of air pollution. – sunlight interacts with pollutants in the air – pollutants produced by fossil fuel emissions – made of particulates and ground-level ozone
16. 2 Air Quality • Smog can be harmful to human health. • Acid rain is caused by fossil fuel emissions. – produced when pollutants in the water cycle cause rain p. H to drop – can lower the p. H of a lake or stream – can harm trees – can harm us if particulates are inhaled
16. 2 Air Quality Air pollution is changing Earth’s biosphere. • The levels of atmospheric carbon dioxide rise and fall over time. • High levels of carbon dioxide are typical of Earth’s warmer periods.
16. 2 Air Quality • The greenhouse effect slows the release of energy from Earth’s atmosphere. 1. sunlight penetrates Earth’s atmosphere 2. energy is absorbed and reradiated as heat 3. greenhouse gases absorb longer wavelengths 4. Greenhouse carbon dioxide (CO ) gas molecules methane (CH ) water (H O) rerelease infrared radiation 2 4 2
16. 2 Air Quality What is greenhouse gas and the green house effect?
16. 2 Air Quality The Greenhouse Effect • G. H. E. is naturally good (it warms Earth) • Problem: Excess CO 2 absorbs excess heat near the earth • Fear: Climate patterns change, ice caps melt • Main Cause: CO 2 from burning of fossil fuels (coal, oil, natural gas) • Solutions: Reduce use of fossil fuels, regrow trees, alternative energy sources
16. 2 Air Quality What’s in a name? The purpose of a greenhouse is to trap heat year round
16. 2 Air Quality Earth
16. 2 Air Quality Earth
16. 2 Air Quality Earth
16. 2 Air Quality The Greenhouse Effect
16. 2 Air Quality The Greenhouse Effect in our solar system Mars: No Greenhouse Effect Little heat is trapped by the thin CO 2 atmosphere. Temperatures can be around 20 F. Venus: The Extreme Greenhouse Effect Heat is trapped by the thick CO 2 atmosphere. Temperatures reach 750 F. Earth: Balanced Greenhouse Effect Average global temperature is 57 F.
16. 2 Air Quality • Global warming refers to the trend of increasing global temperatures. North Pole
Fossil fuel deposits
Fossil fuel energy advantages and disadvantages
Fossil fuel storyboard
Coal is the most abundant fossil fuel
How does fossil fuel produce energy
Pros and cons of oil energy
Advantage of using fossil fuel
Fossil record example
Coal is a solid fossil fuel formed from plant remains
Advantages of fossil fuels
What are the environmental impacts of fossil fuels
Quality assurance concepts
Hubungan air dengan tanah
Six sigma methodology defines three core steps
Antiknock quality of fuel
