Earth’s Spheres ‘The Earth as a System or a Spaceship’ ***Take Notes ***
The Earth as a System Earth’s Spheres.
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Transcript of The Earth as a System Earth’s Spheres.
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The Earth as a System
Earth’s Spheres
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Earth System Science (ESS)• The study of the interactions
between and among events and Earth’s spheres
• A relatively new science (1988)
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Earth’s Sphere
• Atmosphere• Hydrosphere• Lithosphere• Biosphere• Geosphere
• Cryosphere
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Atmosphere
• A gaseous sphere and it envelopes the Earth,
• Consists of a mixture of gases composed primarily of nitrogen, oxygen, carbon dioxide, and water vapor.
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Hydrosphere
• All of the water on Earth
• 71% of the earth is covered by water
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Hydrosphere
Water evaporating from the surface of a lake moves from the?hydrosphere to the atmosphere
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Geosphere•The prefix geo= Earth
consisting of the crust and mantle.•It is the solid part of the Earth
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Lithosphere• The Earth's solid
surface, often called the crust of the earth. It includes continental and oceanic crust as well as the various layers of the Earth's interior.
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Lithosphere
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Volcanoes
Volcanoes can be found where? Geosphere and hydrosphere
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Earthquakes
Earthquakes can be found where? geosphere and hydrosphere
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Tornadoes• Tornadoes can be found in the
geosphere
Tornadoes can be found in the atmosphere
Tornadoes can be found in the hydrosphere
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Biosphere• All life on earth,
including man, and all organisms.
• The life zone on our planet distinguishes our planet from the others in the solar system.
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Cryosphere• The portion of the
Earth's surface where water is in a solid form
• Snow or ice: includes glaciers, ice shelves, snow, icebergs, and arctic climatology
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Interconnected Spheres• Spheres are closely connected• Changes are often chain reactions
• A change in one sphere results in changes in others - called an event– Forest fire destroys plants in an area
• Interactions between spheres– No plants => erosion – Soil in water => increased turbidity– Turbidity => impacts water plants/animals
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Event <=> Sphere• Causes & Effects
• Interactions
• Event <=>Sphere• Sphere<=>Sphere