Earth Subsystems Flashcards

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1
Q

Transitional boundary that divides the crust and upper mantle

A

Mohorovicic discontinuity

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2
Q

Mohorovicic discontinuity was discovered by who and when?

A

Andrija Mohorovicic 1909

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3
Q

Elements found in Crust

A

Oxygen
Iron
Aluminum
Magnesium
Calcium
Sodium
Potassium
Silicon

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4
Q

Sublayer directly below the crust and above upper mantle

A

Asthenosphere

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5
Q

What is the Mantle made up of?

A

Silicate rocks

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6
Q

How much does the mantle make up?

A

84% of the volume of our planet

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7
Q

Rocks embedded or trapped in rocks that come straight from the volcano

A

Xenoliths

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8
Q

Gutenberg Discontinuity was discovered by who and when?

A

Beno Gutenburg 1913

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9
Q

Transitional boundary between the lower mantle and the outer core.

A

Gutenberg Discontinuity

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10
Q

What is core made out of?

A

Iron and nickel

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11
Q

The primary source of the earth’s magnetic field

A

Iron

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12
Q

Transitional boundary that divides the outer core and inner core.

A

Lehman Discontinuity

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13
Q

Lehman Discontinuity was discovered by who and when?

A

Inge Lehman 1929

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14
Q

Encompasses all the water found on earth

A

Hydrosphere

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15
Q

How much percentage does the water cover earth?

A

70%

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16
Q

This circulation is made possible by the interaction of energy and matter

A

Hydrological Cycle

17
Q

How much percentage of the World’s water is considered potable?

A

3%