The Geosphere. The Earth as a System. The Earth is a system of 4 interacting components. Consists of: - Geosphere - Hydrosphere - Atmosphere - Biosphere. The Geosphere Composition. The solid part of the Earth (rocks, minerals, soil, etc.) Most of the geosphere is below the surface.
The Earth is a system of 4 interacting components.
- Geosphere - Hydrosphere
- Atmosphere - Biosphere
Pangaea – Wegener’s idea that all of Earth’s continents were joined into one giant landmass 200 million years ago.
Convergent Plate Boundaries together like a puzzle?
Divergent Plate Boundaries together like a puzzle?
Global Earthquake Distribution
Global Volcano Distribution
Which of these geologic hazards poses the greatest threat to the environment? Why?
The Land together like a puzzle?How is the land in this picture being used?
Urban land = land covered mostly with buildings & roads and containing 2500 or more people.
Rural land = land containing few people & large areas of open space.
How are each type of land cover important to people?
Think About It… Are people dependent on the resources produced in rural areas?
Ecosystem services – resources produced by natural & artificial ecosystems
When urban areas grow too quickly, a crisis can occur.
Suburban development around Maui, HI
Heat Islands – increased temperature in a city
Why? - roads & buildings absorb more heat than vegetation
Effects? – local weather patterns change, more rainfall in cities
Pollution of air,
water, & land