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ES3 Activity 1.3 Flashcards | StudBud
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ES3 Activity 1.3
ES3 Activity 1.3
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Plate tectonics basics and association with earthquakes and volcanoes.
Flashcards
13 cards
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Practice quiz
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Questions
13
Answers
1
What is in between plates?
Loose rock
Not much, they fit tightly together
Magma pools
Sea water
2
Which kind of landscape has more chance of a volcano or earthquake?
Flat and sandy
Tropical
River deltas
Mountainous
3
Plates contain
Dinner!
Usually some ocean, some land
Land only
Either ocean or land, not both
4
Generally, plates are about the same size and shape so they pretty much cover everything.
True
False
5
Most plate boundaries are located...
Either mid ocean or along coasts
On all the coasts
Mid continent
Random locations
6
Earthquakes under the sea are in long lines. Are these lines the deepest parts of the oceans?
Yes
Some are, some aren't
No
7
We know about plate boundary locations from...
Drilling and maps
Direct observation
Inference about volcanoes and earthquakes
Subduction
8
Earth's plates are:
Under everything
Under most of the continents, but not mountains
Under continents, not oceans
Scattered about with some gaps in between
9
Earthquakes and Volcanoes are most common...
On the edges of continents
In Antarctica
In Australia
In the middle of continents
10
Tell me about undersea volcanoes.
They don't exist
They are much more common than land volcanoes
Are mostly close to shore
Make all the water at the seafloor boiling hot.
11
What provides the pressure that makes some volcanoes explode?
Gasses in the magma
Ash build up
Intense heat
Fluid magma
12
Earth has about ___ major plates
15
50
4
30
13
Volcanic eruptions are more common than major earthquakes (5 or larger)
True
False
