GEOL Exam 1

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wide spread, not equally dangerous, and expensive to fix

ASBESTOS is controversial because

Continental crust is less dense than oceanic crust

CONVERGENT plate boundaries are subducted because

Acid Mine Drainage

Concern with mineral PYRITE

Mid Ocean Ridges

Convergent plate boundaries are associated with

Lacked mechanism to explain how continents moved

Critical problem with Alfred Wagner's theory of CONTINENTAL DRIFT was that

Uranium

Critical role in mining in GJ

Blue

Dangerous form of Asbestos?

4 pCi/L

EPA "action level"

All of the above

Evidence supporting theory of PLAT TECTONICS include

Yellow color and low pH levels

How can you identify a river affected by Acid Mine Drainage

Heating uranium bearing rocks

How does Radon originate

Reversed polarity numerous times

MAGNETIC FIELD of the earth has

It is a gas

NOT a typical property of Asbestos

Use wetlands as an organic filter

Natural way to clean Acid Mine Drainage

Geological processes are especially active

PLATE TECTONICS BOUNDARIES are where

Lithosphere

PLATE TECTONICS are represented by

Iron and Sulfer

PYRITE consists of

True

People can be harmed by levels as low as 2 pCi/L

2nd leading cause of lung cancer

Radon is the

Large depressions filled with sediment

Sedimentary Basins are

Ground water, oil and gas

Sedimentary basins contain

Combating certain types of cancer

Use of Radium

Its radioactive properties

VANADIUM from the URAVAN MINERAL BELT

Seafloor Spreading

What 1960's key evidence was discovered that led to plate tectonics

Mobile in air but not water

Which is true about RADON GAs


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