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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
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