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Reviewer > Earth Science 2nd Quarter Pre Assessment > Flashcards

Earth Science 2nd Quarter Pre Assessment Flashcards

1
Q

What is the axial tilt of Earth?

A

23.5 degrees

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2
Q

What is the thinnest and the outermost layer of the structure of Earth?

A

Crust

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3
Q

What layer of the Earth produces the magnetic field of the said planet?

A

Outer Core

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4
Q

What is the weak and viscous layer that causes the plate tectonics to move?

A

Asthenosphere

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5
Q

What is the meaning of Pangaea?

A

All Land

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6
Q

How many major tectonic plates that we have?

A

7

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7
Q

What plate boundary occurs when two (2) plates collide?

A

Convergent

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8
Q

What plate boundary occurs when two (2) plate move apart each other?

A

Divergent

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9
Q

What is described as the sudden shaking of the ground along a fault?

A

Earthquake

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10
Q

What do you call the origin point of an earthquake underground?

A

Focus

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11
Q

What type of seismic waves arrive last at the seismic stations?

A

Rayleigh Wave

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12
Q

What refers to the energy released by an earthquake?

A

Magnitude

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13
Q

What is the large underground pool of liquid rock found beneath the Earth’s crust?

A

Magma Chamber

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14
Q

What is the depression of the volcano or opening of the summit of a volcano?

A

Crater

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15
Q

What is the passageway of molten rock that reaches the Earth’s surface?

A

Vent

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16
Q

What type of volcanoes is described as the simplest and smallest type?

A

Cinder Cone

17
Q

What type of volcanoes has eruptions that are gentle and not life threatening?

A

Shield

18
Q

Which of the following is an example of composite volcano?

a. Mauna Loa
b. Mauna Kea
c. Mt. Paricutin
d. Mt. St. Helens

A

Mt. St. Helens

19
Q

What pyroclastic material is described as walnut-sized particles?

A

Lapilli

20
Q

What are large depressions of volcanoes formed by collapse of magma chamber?

A

Calderas

Reviewer (12 decks)

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