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The Earth as a System

Explore the Earth as a system comprising the Atmosphere, Hydrosphere, Lithosphere, Biosphere, Cryosphere, and their interconnected interactions. Learn how changes in one sphere can affect others, shaping our planet's delicate balance. Earth System Science delves into these dynamic relationships, offering insights into the complexities of our environment.

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The Earth as a System

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  1. The Earth as a System Earth’s Spheres

  2. What is a System? A set of connecteditems or devices that operate together

  3. Earth System Science (ESS) • The study of the interactions between and among events and Earth’s spheres • A relatively new science (1988)

  4. Earth’s Sphere • Atmosphere • Hydrosphere • Lithosphere • Biosphere • Cryosphere

  5. 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.

  6. Hydrosphere • All of the water on Earth • 71% of the earth is covered by water and only 29% is terra firma

  7. 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.

  8. 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.

  9. 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 (muddy water) • Turbidity => impacts water plants/animals

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