1. How Human Activities affect the Environment

2. Table of Contents Science Process Skills Parts of a Cell
Classifying Animals
Ecosystems
Food Chains/Webs
Photosynthesis
Symbiotic Relationships
Fossils
Eco-columns
Pollution next clean page

3. Pollution
Definition adding harmful substances or products into the environment
The use of FOSSIL FUELS are the biggest cause of pollution

4. What are fossil fuels? Oil, gas, and coal
Easy to use and contain a lot of energy
They can affect the environment in many ways

5. Air Pollution
Pollutants (such as burning fossil fuels) released into the atmosphere can have harmful effects.
Smog
Depletion of the ozone layer
Creation of acid rain
Some causes of air pollution-
Car emissions
factories

6. Air Pollution Effects on the environment can include
Health risks to living organisms
All air pollutants return to the ground in some form which effects the surrounding landscape

7. Air Pollution

8. Air Pollution

9. Air Pollution- Effects of acid rain

10. Air Pollution-Ozone depletion

11. Water Pollution When pollutants are added to the water supply
Oil spills
Fertilizers (chemicals)

12. Water Pollution
When a water supply is contaminated, not only are aquatic plants and animals affected, but also any organism that needs that water to survive

13. BP Oil Rig Explosion- 2010

14. BP Oil Rig Explosion- 2010

15. BP Oil Rig Explosion- 2010

16. Land Pollution
Humans produce hundreds of millions of solid waste each year…..
Where does it go?

17. To a landfill!

18. To a landfill!

19. To a landfill!

20. Human Development/Population
Today there are more than 6 billion people on the Earth
What does that mean for the planet’s biotic and abiotic factors?
Less resources (food, water, land, etc)
Loss of habitats

21. What if…….
An ecosystem of forests was destroyed and replaced with a large shopping mall?
Predict how this will most likely affect the environment of the area.
Result in habitat destruction
Decrease in animal population
Increase pollution

22. What if……
As a city’s population grows, wooded areas are replaced by housing developments.
What effect will this most likely have on the species in the wooded areas?
Many of the species will leave the area
Some may die if there is no other habitat available

23. Pollution
Pollution- adding harmful substances or products into the environment
The use of fossil fuels is the major cause of pollution
Air
Land
Water
Smog
Ozone Depletion
Acid Rain
Solid wastes
Landfills
Oil spills
fertilizers