Download Plate tectonics Questions 1-3 1. His colleagues at the time argued

Plate tectonics
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Questions 1-3
 1. His colleagues at the time argued for
polar wandering as an explanation of his data.
These ideas were not well accepted until later
scientists in the 1940's and 50's expanded on
these ideas adding to them pale magnetism.
Convection currents and sea floor spreading.
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2.He was just a meteorologist,
They thought he was faking his data,
No one could figure out how a huge continent could
move.
3. Arthur Holmes published his idea that thermal
convection in the earth's mantle could cause
continents to move. Discoveries of the Mid-Ocean
Ridge and the work of Harry Hess and others led to
the development of plate tectonics.
Questions 4-8
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4. North American plate, Eurasian plate,
and oceanic plate.
5. America is on the North American plate
boundary and Europe is on the Eurasian plate
boundary.
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6. Divergent, convergent and oceanic.
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7. Divergent boundaries or were two plates
move away from each other and oceans are
born as they grow wider. Convergent is when
two plates come together and form subduction
zones. Mountains and Volcano are often found
where plates converge.
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8. Ocean trenches and volcanoes both
occur where continental plates collide, or meet.
An Ocean trench is also noted for the presence
of a volcanic arc.
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Questions 9
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9. The rocks off of the east coast of North
America are much older than those right along
the mid-Atlantic ridge because sea-floor
spreading is occurring where oceanic plates are
divided.
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Questions 10-11
10.
11.Radioactive decay and Residual heat
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Questions 12-14
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12. The convergent forces make volcanoes
and mountains because the two plate colliding
together.
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13. Horst and graben are terms referring to
regions that lie between normal faults and are
either above or lower than the area beyond the
faults. A horst represents a block pushed
upward by the faulting, and a graben is a block
that has dropped due to the faulting.
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14. They were formed when California
and Washington clashed into Nevada and
Utah which both being the same mass as
the other, instead of one being pushed
down both went up becoming mountains.
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Questions 15-16
15. Earthquakes and volcanoes. It causes a
surface source, called the epicenter, to
create three kinds of waves: Primar waves,
Secondary waves, and surface waves. The
P waves go first. Finally the surface, which
cause the most damage. That's how
earthquakes are made.
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16. They provide use with more water
every time a divergent boundary forms, the
movement of the tectonic plates do is
recycle the carbon dioxide, helping the
planet from undergoing a runaway
greenhouse climate, and Ore deposits,
fertile soils, and fossil fuels are three good
things that plate tectonics provide for
humans.