Wednesday, January 26, 2011

Questions Pg. 50

Q1:
a.What are the three main types of stress in rock?
Shearing, compression and tension.
b.How does tension changes Earth's crust?
 It creates Earthquakes and that creates holes/mountains.
c.Compare the way that compression affects the crust to the way that tension affects the crust.
Tension creates mountains and compression creates holes.


Q2:
a.What is a fault?
Faults are fractures in Earth's crust.
b.Why do faults often occur along plate boundaries?

Because the forces of plate motion push or pull the crust so much that the crust breaks
c.What type of fault is formed when plated diverge, or pull apart?
Tension
 d.What type of fault is formed when plates are pushed together?
Compression

Q3:
a.Name five kinds of landforms caused by plater movement.
mountains, continents, volcanoes, islands, and fault lines
b.What are three landforms produced by compression in the crust?
Volcanoes, fold mountains and plateaus are formed by compression.
 What landform is produced by tension?
Fault-block mountains and valleys are produced by tension.

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