P.18 Scientist George Airy inferred about mountains that they must be thicker than they appear, not merely

standing on Earth’s crust, but extending deeper into it.

Page 22, according to image 2-8, this image , and the reading, which is the best theory?

The juncture of the Red Sea and Gulf of Aden will widen the fastest.

Look at Figure 2-10 and read about it on page 22. How did the Atlantic Ocean form?

Pangea separated by evolution of spreading ridge-separated Africa+S America

Characterize the impact of temperature of the crust on its elevation above sea level. ( page 19) You're welcome!

Hotter than old, cold continental crust. Less dense and expanded.

P. 19 About how many lithospheric plates are there and how would you characterize them?

About 12 large and 12 or so small ones. They are uneven in size and shape

How do we distinguish between the mantle and the crust?

It is based on rock composition.

Since we don’t have direct observations of crustal thickness, how do scientists measure it?

They measure the gravitational attraction of the Earth

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2020-21 NHD Natural Hazards and DisastersCH 2 Test Pt. 1 Plate Tectonics and Physical Hazards

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Mrs. Babcock Bishop Ludden Junior-Senior High School Natural Hazards and Disasters, Fifth Edition Hyndmann andf Hyndmann 978-1-305-58169-2 MKB 2020-21 School Year

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Questions 15

Answers

1
In Africa , where do most of the mountain ranges tend to be in terms of direction? Pick the best answer.
South
West
North
East
2
P.18 Scientist George Airy inferred about mountains that they must be thicker than they appear, not merely
under Earth’s crust, but peaking out of it.
standing on Earth’s crust, but floating on the top of it.
in the center of Earth’s core, but extending deeper into the liquid.
standing on Earth’s crust, but extending deeper into it.
3
Page 22, according to image 2-8, this image , and the reading, which is the best theory?
Both the Red Sea and Gulf of Aden will narrow
The juncture of the Red Sea and Gulf of Aden will widen the fastest.
The spreading rift will be swiftest at the Rift Valley
The Mediterranean Sea will be the next ocean
4
In North and South America , the mountain ranges tend to be in the eastern portion of the respective continents.
True
False
5
East African Rift Zone (p. 22) What may result from this rift zone?
A new mountain is being formed in the
A new ocean may be created.
A tsunami may result.
The Red Sea will disappear.
6
Look at Figure 2-10 and read about it on page 22. How did the Atlantic Ocean form?
Pacific separated by evolution of spreading ridge-separated N+S America
Africa separated by evolution of spreading ridge-separated N+S America
Pangea separated by evolution of spreading ridge-separated N+S Africa
Pangea separated by evolution of spreading ridge-separated Africa+S America
7
What concept is illustrated by this image?
Isostacy
Trenches
Divergent Boundaries
Plate Tectonics
8
What is a factor related to water which explains why 90% of an iceberg is below water?
Pressure
Shape
Density
Clarity
9
Characterize the impact of temperature of the crust on its elevation above sea level. ( page 19) You're welcome!
It is 100% underwater.
It has no impact.
Colder than old, cold continental crust. Less dense and expanded.
Hotter than old, cold continental crust. Less dense and expanded.
10
Which part of the Core is liquid?
The whole core.
None of it.
The outer core.
The inner core.
11
P. 19 About how many lithospheric plates are there and how would you characterize them?
About 12 large and 24or so small ones. They are even in size and shape
About 22 large and 22 or so small ones. They are even in size and shape
About 12 large and 12 or so small ones. They are uneven in size and shape
About 24 large and 24 or so small ones. They are uneven in size and shape
12
How do we distinguish between the mantle and the crust?
It is based on the amount of water.
We don't distinguish. They are synonyms ( same thing).
It is based on rock composition.
It is based on the amount of oxygen.
13
Since we don’t have direct observations of crustal thickness, how do scientists measure it?
It is unmeasurable.
They measure the gravitational attraction of the Earth
They measure the gravitational attraction only of the outer core.
They measure the tidal attraction of the Earth.
14
Figure 2-3 Which plate is Syracuse located on?
Nazca Plate
North American Plate
Caribbean Plate
Cocos Plate
15
What can result from two continental plates colliding in a convergent boundary( page 20)? Pick the best answer.
Wildfires
Blizzards
Flood Zone
Mount Everest

2020-21 NHD Natural Hazards and DisastersCH 2 Test Pt. 1 Plate Tectonics and Physical Hazards Flashcards | StudBud