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Geology: Layers of the Earth Flashcards | StudBud
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Geology: Layers of the Earth
Geology: Layers of the Earth
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geology introduction to interior of the earth and plate tectonics
Flashcards
14 cards
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Practice quiz
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Questions
14
Answers
1
Which of the earth's layers is the hottest layer with greatest pressure forces?
mantle
inner core
outer core
crust
2
Typically why does the middle mantle flow?
convection currents
radiation from the sun
heat generated by asteroid collisions
conduction
3
The thickness of the Earth's crust under the continents is about:
3 to 5 miles
25 feet
25 miles
400 miles
4
Lithospheric plates float on the soft, semi-rigid layer called the:
thermosphere
stratosphere
asthenosphere
outer core
5
Which part of the Earth's core behaves as a solid?
outer core
inner core
6
Which of the following is part of the middle mantle?
inner core
oceanic crust
continental crust
asthenosphere
7
Why do the continents ride on top of the oceanic plates?
continents are more dense, oceanic plates less dense
none of these is correct
continents and oceanic plates are equally dense
continents are less dense, oceanic plates more dense
8
This part of the Earth's core is liquid, and mostly composed of nickel and iron:
inner core
outer core
9
The thickness of the Earth's crust under the oceans is about:
25 feet
3 to 5 miles
25 miles
400 miles
10
Which type of rock is found mostly in continental crust?
nickel
basalt
iron
granite
11
Which layer of the Earth do you live on?
mantle
crust
inner core
outer core
12
The crust and upper layer of the mantle together make up a zone of rigid, brittle rock called:
outer core
asthenosphere
convection zone
lithosphere
13
Which type of rock is found mostly in oceanic crust?
granite
basalt
iron
nickel
14
Which of the following is the largest layer of the Earth?
outer core
inner core
mantle
crust