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fall geology review

Question	Answer
The two most abundant elements in the Earth's crust are	silicon and oxygen
An example of a common nonferromagnesian silicate mineral is	calcite
The ratio of a mineral's weight to the weight of an equal volume of water is its	density
The atomic number of an element is determined by the	number of protons
After silicates, the most important rock-forming minerals	carbonates
Lacks good cleavage	quartz
Calcite will scratch glass	True
Feldspars	most abundant mineral as a group
Micas and clay minerals	of sheet silicates
The property that causes salt to come out of the salt shaker as tiny cubes	cleavage
You can identify diamonds by seeing if they scratch glass	True
Calcite and dolomite are	carbonate minerals
Many minerals break along closely spaced planes and are said to possess	cleavage
(Mg,Fe)2SiO4 means that in addition to silica	magnesium and iron can substitute for one another
Which property is least reliable in identifying minerals	color
The property that makes gold panning possible	density
The single most important group of minerals in abundance	silicates
Limestone and dolomite are made from these minerals	carbonates
Have good cleavage and fizz in acid	carbonates
Light in color and weight, good cleavage, often water-soluble	halides
A hard mineral is most likely to be one of these	silicates
Most likely to split into thin sheets	mica

The atomic number of an element is determined by its	number of protons.
The atomic weight of an element is determined by its	total of protons plus neutrons.
How can rain forests be so lush if the soil is so poor	The ecosystem is very effective at recycling nutrients
Why small particles weather faster than large ones	They have more surface area for chemical reactions
The B horizon of a soil is the zone of	accumulation
The dominant form of weathering in deserts is _____, desert vegetation is _____, and soils are _____	mechanical, limited, thin
Granite weathers more rapidly than quartzite because it contains abundant	feldspars
The most intense chemical weathering would be expected where	the Amazon Basin
We would expect little chemical weathering, but intense frost action here	Minnesota
Little chemical weathering, episodic and violet rainfall with rapid erosion would be most likely here	the Amazon Basin
Rapid chemical weathering because of acid rain would probably happen where	Manhattan
Least likely to weather rapidly	quartzite
Rocks often shatter when they freeze because	ice expands when it freezes
A metamorphosed equivalent of a limestone would be	marble

Created by: cgiboney on 2009-12-14

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fall geology review