1. Chapter 3 Page 62 Planet Earth

2. Life

3. “All parts of the earth that support and contain life”
All 3 places make up the…
BIOSPHERE
“All parts of the earth that support and contain life”

4. 3.1 Geosphere and natural pollution
Humans interact mainly with the outermost layer called the crust

5. CHANGES IN THE LITHOSPHERE
Made of several large, movable plates called TECTONIC PLATES that are naturally moving.

6. Boundaries: 1. Convergent - volcanoes 2. Divergent - volcanoes
3. Transform - EQ

7. Volcano natural pollution impacts
Have natural carbon emissions into the atmosphere!
Hurts the water quality
Changes the temperature by blocking out the sun!
Releases SO2 which causes acid rain and acidic bodies of water!

8. Deadly ash clouds

9. Earthquakes impacts
EQ destroy existing structures. To rebuild this is a waste of resources.
Also disasters destroy natural ecosystems.

10. Atmosphere System & Pollution
The release of CO2 and other gases are causing Green house effect.
This creates global warming!
The ozone layer is thinning from some of this!

11. Troposphere
= Layer of the atmosphere that touches the surface of Earth.
Virtually all human activities occur in the troposphere.

12. Troposphere importance
Has most of the gas molecules
Has most of water vapor
Most weather occurs here

13. Stratosphere
Next layer above earth
Contains:
90% of OZONE LAYER *.

14. Greenhouse Effect in the Atmosphere
“Causes buildup of CO2, which traps sunlight, and causes warming and climate changes.”
too much CO2 released from:
organisms, volcanoes, and burning of fossil fuels.

15. Greenhouse Effect Example of humans changing the earth’s atmosphere!
Loss of ozone
Pollution in troposphere
Volcanic eruptions

16. Hydrosphere
Complete the ws on hydrosphere. Pg 77

17. Why water?
Life on earth could not exist without water for obvious reasons!
But….another thing large bodies of water does for the planet is retain heat! This keeps earth at a steady temperature instead of completely depending on outside heat!

18. These natural phenomenon will not be stopped, but must be taken into consideration when trying to lower emissions.