Flashcards
ch 14 & 15
Cards in this deck (41)
- 11. Define the term desertan area so arid that it has no permanent streams and sparce vegetation
- 22. What is meant by the term ariditya deficiency of moisture (especially when resulting from a permanent absence of rainfall)
- 33. How are deserts classifiedThey are classified on the reason the desert is formed
- 44. Identify the types of deserts by formation and examplesSubtropical, Rain-shadow, coastal, continental-interior, polar
- 55. What is desert varnisha dark rusty brown coating of iron oxide and magnesium oxide that accumulates on desert rock
- 66. Why do dust storms occurStrong wind
- 77. What are the various landscapes found in the desertCliffs, mesas, and arches
- 88. Explain what leads to desertificationLow rainfall, overpopulation, overgrazing, intensive farming, and diversion of water supplies
- 99. Define glaciers. How do they formGlaciers begin forming in places where more snow piles up each year than melts. Soon after falling, the snow begins to compress, or become denser and tightly packed. It slowly changes from light, fluffy crystals to hard, round ice pellets
- 1010. Identify different glaciersmountain, continental, temperate, polar
- 11the daily rise and fall caused by gravitational attraction of the moon and other forcestides
- 12b. Ocean water unhomogenoussalt content and temperature vary regionally and with depth
- 13i. Ocean cover _____ of Earth’s surface70.8%
- 14the 5 oceans1. Atlantic
2. Pacific
3. Indian
4. Artic
5. Southern - 15Equator divides the Atlantic and Pacific into _____ and ______ portionsnorthern and southern
- 16SEAs1. Mediterranean
2. Black
3. Red
4. Caribbean - 17______ refers to the elevation of the boundary between Ocean water and the air aboveSea level
- 18ii. When sea-level rise significantly, ocean water may submerge large area of continents to form epicontinental seas and when fall form______continental shelves
- 19ii. ______ is reservoir from hydrologic cycleOcean
- 20the ocean is ____ water and ____ salt by weight96.5% 3.5%
- 21Ocean salinity changes based with ____depth
- 22v. When seawater evaporates in consists 85% of the ____ mineral halitesalt
- 23Sea surface temperature exists because on _____ (intensity of solar radiation) varies with latitude and seasonsinsolation
- 24Density changes relatively rapidly across a boundary called the _____pycnocline
- 25Prevailing conditions over time define the _____ _____ _____temperature, density and salinity
- 26iii. Water mass remain distinct because they do not _____mix at margins
- 27Band of flowing water that moves distinctly faster than adjacent water is a_____current
- 28major surface currents of Earth display circle-like path; flow clockwise in Northern hemisphere and counter clockwise in the Southern hemisphereGyres
- 29local define smaller currentsEddies
- 30Force applied by a moving material to another moving material across an interface is africtional drag
- 31Air moving against water applies ________ and causes water to move initiate a current in the same direction of the windfrictional drag
- 32Due to the earth’s _____ the seawater deflects away from its initial straight-line path and travel in different direction along pathrotation
- 33Pressure gradient force develops because of______ causes slow drift of water toward center of an ocean sea level becomes slightly higher at the center of the oceanEkman transports
- 34Continents and equator gyres separate the global saltwater layer intoseparate oceans
- 35______ zones places where near-surface water sinks andDown welling
- 36rising and sinking of water driven by densityThermohaline circulation
- 37Wind driven waves are from interaction between _____ and _______moving air
the surface of the ocean - 38distance between to successive troughs or crestsWavelength=
- 39# of wave crest or troughs that pass a point in a given timeWave frequency
- 40time between the passage of 2 successive crests or troughsWave period
- 41Waves travel away from their source is known asswells
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- Flashcards on ch 14 & 15 , created by Nathan Duck on 14/08/2020.
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- Nathan Duck
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