1. Resources and Conservation

2. Pollution and Air Pollution
A pollutant is __________________________________
Types of air pollution include:
_________________
A substance that contaminates the environment
soot
smoke
ash
Carbon dioxide
Nitrogen oxides
Sulfur oxides
Carbon monoxide

3. MAN MADE VS. NATURAL POLLUTANTS
Man-Made Pollutants
- Volcanic eruptions
Wind- blown dust and sand
- forest fires
cars
Trucks
Airplanes
Factories
-homes
Power plants
Evaporation of paints and other chemicals
smog
sunlight
Another type of pollution is ______________. It is created when _____________
reacts with pollutants produced by ___________________.
burning fuels

4. Acid Rain How does acid rain form? Effects of Acid Rain
Preventing Acid Rain
Air pollutants from the burning of fossil fuels reacts with water in the
air to form strong acids that precipitate down from clouds.
nutrients washed away tree or plant death
Acid rain runoff flows into lakes/ponds which could harm or kill the fish or other
organisms living there.
use natural gas or low-sulfur coal
Use smokestacks that remove sulfur dioxide before it enters the air
Use the automobile less
keep engines tuned
Use electric cars or hybrid-fuel cars that run on electricity

6. Acid Rain Destruction

7. This statue has been slowly destroyed by acid rain so that now the faces are barely visible.

12. Greenhouse Effect

13. Why do we need the greenhouse effect?
Because without this effect, temperatures on Earth would be too cold to
support life.
Critical Thinking….
These days, when people talk about the greenhouse effect, they talk
About it like it’s a bad thing. Why is that?

14. Global Warming
A rise is the Earth’s ________ __________ possibly cause by an _________ in greenhouse gasses is known as global warming.
What kinds of changes could be caused by global warming?
_______________________________________________
average temperature
increase
Changing rainfall patterns could alter ecosystems & affect kinds of crops
Storms & hurricanes might increase
Polar ice caps may melt rising sea levels & flooding areas
Tropical disease could become more widespread

18. Ozone Depletion Ozone depletion is ______________________________
________________(CFCs) are the main pollutant gasses that cause this.
Where do CFCs come from?
___________
When CFCs ______ into the air, they travel until they reach the upper ozone and ______ _______ the ozone molecules.
The thinning of the ozone layer
Chlorofluorocarbons
refrigerators
freezers
air conditioners
leak
break apart

20. This image, captured from the Ozone Monitoring Instrument (OMI) aboard NASA's Aura satellite, shows the area of the ozone hole over Antarctica.
November 1979
November 2009

21. UV Radiation Because of ozone depletion, the amount of
___ ___________ that reaches the earth’s surface is increasing.
Think about it….
What is the difference between the ozone in the upper atmosphere and the ozone in the lower atmosphere?
UV radiation
Ozone in the upper atmosphere protects life on Earth.
Ozone in the lower atmosphere pollutes the air damaging
the lungs and other sensitive tissues of animals and plants.

22. Water Pollution How can water get polluted? Air pollutants can get
washed out by rain.
Rain can wash land
pollutants into water.
Factories and sewage
plants can release
pollutants
Fertilizers
pesticides
Critical Thinking…
How can water pollution cause harm to humans even if they are never in the water?
How can ground water get polluted?
Ground water can get polluted by the pollution leaks into the ground and then
enters into our ground water.

25. Soil Pollution How does this diagram show soil and water pollution?
How can soil be polluted?
Air pollution drifts to ground
Water leaves pollutants behind
Litter landfills
Pesticides
Radioactive wastes
Petroleum based solvents
Hospital wastes
How does this diagram show soil and water pollution?