Four Subsystems Of The Earth Flashcards
Four subsystems of earth
Atmosphere
Geosphere/lithosphere
Hydrosphere
Biosphere
It is the study of earth as an integrated system.understand past present future state of planet
Earth system Science
States that the earth is a self regulating system
Gaia Hypothesis
Proponents of Gaia Hypothesis
James Lovelock
And Lynn Margulis
Meaning of NASA
National Aeronautics and Space Administration
An Agency that is responsible for science and technology related to air and space
NASA
Aim to understand earth’s systems by using satellites for long term observation
NASA ESS Committee
Make up of all the gases of earth
Atmosphere
Atmosphere is composed of 5 parts
Troposphere
Stratosphere
Mesosphere
Thermosphere
Exosphere
Lowest part of atmosphere
75/80 of atmosphere is here
Troposphere
Above troposphere, Ozone Layer protects from ultraviolet Ray’s from sun
Stratosphere
Cold part of atmosphere no ray of sun reach
Mesosphere
Absorb suns radiation
Thermosphere
Uppermost region of earth atmosphere
Helium and hydrogen
Exosphere
Comes from Greek word geo which means ground
Includes all the soil rocks and minerals present in the crust to the core of earth
The Geosphere
This layer composed of crust and portion of upper mantle
The Geosphere
Parts of the earth
Crust
Mantle
Outer core
Inner Core
Composed of all water on earth in any form
Comprised of 97.5% saltwater and 2.5% freshwater
Hydrosphere
Includes all the organisms on earth
The Biosphere
