Exam 1 Flashcards by Rebekah Wielenga

Q

4 Earth Systems

A

lithosphere, biosphere, hydrosphere, atmosphere

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Q

Is continental or oceanic crust denser?

A

Oceanic

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Q

Why is earth layered?

A

Accretion, heating, and differentiation

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Q

What energy drives earth’s systems?

A

Thermal energy

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Q

What causes earth’s magnetic field?

A

Convection of outer core

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Q

What causes plate tectonic movement?

A

Convection in the mantle

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