Term
1) Earth materials move in cycles
2) A change in one cycle affects the other cycles |
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Definition
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Term
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Definition
| True or False: The amount of water on Earth has been about the same since 4.0 b.y. ago |
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Term
| Oceans, Lakes, rivers and streams, Ice caps and glaciers, atmosphere and clouds, groundwater (in aquifers) and ground ice, living matter |
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Definition
| Examples of Resevoirs of water: |
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Term
1) Precipitation (rain,snow,etc.)
2) evaporation
3) sublimation
4) transpiration
5) flow due to gravity |
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Definition
| Modes of water movement between reservoirs: |
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Term
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Definition
| redistribute solar heat in sea water across the Earth; affects Earth's weather and climate |
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Definition
| current systems involving return flow of cold water to lower latitudes; mainly occurs in large ocean basins |
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Definition
| colder deep water flows up at coastal areas due to wind energy pushing surface water away from land |
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Term
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Definition
| cold water from polar areas that flows down to sea floor and toward the equator; cold water is colder and more dense |
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Term
| due to weathering of rocks on land, and transportation of dissolved elements into the sea; saltiness at present level since ~3.5 billion years ago |
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Definition
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Term
| evaporation of sea water causes saturation and the precipitation of salt crystals; organisms in the sea also take up dissolved minerals |
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Definition
| how is the salt removed from the ocean |
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Term
| 260 x 10^6 yr. with a concentration of 10,800 ppm |
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Definition
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Term
| 8 x 10^6 yr. with a concentration of 413 ppm |
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Definition
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Term
| infinite with a concentration 19,400 ppm |
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Definition
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Term
| 4.2 x 10^3 yr. with a concentration of .00005 ppm |
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Definition
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Term
| 11 x 10^6 yr. with a concentration of 387 ppm |
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Definition
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Term
| 5 x 10^4 yr. with a concentration of .003 ppm |
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Definition
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Term
| sediments of the ocean form layers of sedimentary rock that are pushed up into folded mountains, eroded away and transported to the ocean via rivers and streams; subduction may also result in melting of these sediments and chemical return to the ocean via volcanoes |
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Definition
| Return of salt to the sea: how? |
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