1. Atmosphere, Hydrosphere, Lithosphere, and Biosphere
The Earth’s Physical Systems
Atmosphere, Hydrosphere, Lithosphere, and Biosphere

2. Earth System (4 physical systems)
Atmosphere
Layer of gases that surround Earth. Allows you to breathe and protects earth.
Lithosphere (crust and MOHO)
Surface of the planet that forms the continents and the ocean floor.

3. Earth System (4 physical systems)
Hydrosphere
All the water on Earth (ocean, ice, and water vapor in the atmosphere)
Biosphere
Part of Earth where life exists.

4. Lithosphere
Hydrosphere
Atmosphere
Biosphere
METEOROLOGY
GEOLOGY
ASTRONOMY
OCEANOGRAPHY

5. Human Actions Affecting the Atmosphere
NEGATIVE
POSITIVE
Ozone Depletion
UV rays can destroy a type of bacteria known as Cyanobacteria which produces much of Earth's oxygen.
Exposure to  harmful  UV rays can cause skin cancer and cataracts.
An excess level of UV rays could lead to the death of the phytoplanktons, that are an important component of the food web of the oceans.
Global warming
Glacier melting which leads to flooding
Changing weather
Clean Air Act

6. Human Actions Affecting the Lithosphere
NEGATIVE
POSITIVE
Over Harvesting
imbalance in the food chain
the death of a species
Air and Water Pollution
Weathering
Loss of useful water
Reforestation
Restocking of fish
Water purification

7. Human Actions Affecting the Hydrosphere
NEGATIVE
POSITIVE
Pesticides
washing into river systems
Decline of quality groundwater
Acid Rain
Damages trees at high elevations
decay of building materials and paints, including irreplaceable buildings, statues, and sculptures
harmful to public health
Release of oceanic carbon dioxide

8. Human Actions Affecting the Biosphere
NEGATIVE
POSITIVE
Prevention of forest fires by proper forest management
Deforestation
flooding
landslides and mudslides
trees are an important part of the water cycle
forests home to a large number of animals
Strip Mining
water pollution
landslides
fires
hazards to public health & safety