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JUAN_RANGEL
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274888
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Flashcards
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2014-05-22 09:56:27
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Comer Earth Space Science
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Es final 2014
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  1. What is the crack in the ocean floor throughwhich rnarya rises?
    Rift
  2. According to Wegener, what happened about 250 million years ago?
    The supercontinent beganbreaking i*o smaller continents.
  3. Tectonic plates are blocks of....
    lithosphere
  4. At the center of a mid-ocean ridge is a(n)
    deep-ocean trench
  5. The composition of Earth's interior affects
    the speed and direction of seismic waves.
  6. Which scale more accurately measures the magnitude of large earthquakes?
    moment magnitude scale
  7. If you are in car during an earthquake, you should...
    stop the car in a safe place
  8. What happens to tsunamis as they move toward shore?
    They increase in height
  9. If you are indoors during an earthquake, you should...
    Stay away from windows
  10. Which of the following is NOT a cause of tsunamis?
    Tornado
  11. If you are indoors during an earthquake, you should...
    Crouch under a desk
  12. How does the structure of Earth's interior affect seismic waves?
  13. What is studied at forecast earthquakes?
    seismic gaps, foreshock, rock changes
  14. Why do earthquakes usually occur at plate boundaries?
    Rock in environments near tectonic plate boundaries experience great stress
  15. S waves are also known as...
    Shear waves
  16. Fault zones form at plate boundaries because...
  17. What forms on the ocean floor in a subduction zone?
    Trench
  18. Volcanic eruptions may be signaled by...
    A change in earthquake activity
  19. A large depression formed by collapse of a volcanic cone is called a...
    Trench
  20. Volcanic ash, dust, blocks, bombs, and lapilli are all...
    Pahoehoe
  21. The eruption of Mount St. Helens was...
    An explosive eruption
  22. Three events that might signal a volcanic eruption are changes in earthquake activity, volcano surface bulges, and...
    A change in gases emitted
  23. Modern oceangraphy began with...
    The HMS Challenger
  24. Most mid-ocean ridges form
    Below sea level
  25. A piece of sediment collected by drilling is a(n)...
    Core sample
  26. The most common compound in organic sediments are...
    Silica and calcium carbonate
  27. To calculate the depth of the ocean floor with sonar, scientists measure
    The time it takes sound waves to travel
  28. The source of most calcium carbonate in biogenic sediements is...
    Foraminiferans
  29. Most oxygen enters the ocean from...
    The atmosphere
  30. What is called the foundation of life in the ocean?
    Plankton
  31. The ocean is the main source of the trace minerals...
  32. Most offshore oil and petroleum deposits are found...
    Along continental margins
  33. In addition to increased use of toxic chemicals, what has reduced the ocean's ability to renew itself?
    Increased world population
  34. In addition to limiting the use of leaded gasoline, what has the United States done to reduce ocean pollution.
    Stopped th dumping of garbage into the ocean
  35. Trace elements in the ocean are those minerals that are...
    Least Desirable
  36. Volcanic eruptions, chemical weathering of rock on land, chemical reactions between sea water and newly formed seafloor rocks provide most of the raw elements that form this dissolved solid in the ocean
    Sea Salts
  37. Where would a tidal bore occur?
    Where a river enters the ocean
  38. The curving of the path of ocean currents and wind belts is called...
    The Coriolis effect
  39. The force that cause tides is...
    Gravity
  40. Very large waves are usually the result of...
    A weak fetch
  41. In the tropical latitudes, trades-wind belts push currents...
    Westward
  42. Sandbars are formed by...
    Longshore currents
  43. As lower layers of air are warmed...
    The air rises
  44. What air masses generally move eastward, toward Europe?
    Maritime tropical Atlantic
  45. A large body of air throught which temperture and moisture content are similar is a(n)...
    Air mass
  46. Continental polar, maritime polar, continental tropical, and maritime tropical are types of...
    Air masses
  47. Doppler rader and satellite images provide information to create...
    Weather Data
  48. A pattern of meteorological symbols that represent the weather at a particular observing station is a...
    Station model
  49. When air moves slowly, it takes on the tempture and humidity and its region, becoming a(n)...
    Air mass
  50. Lines that connect points of equal tempture on a weather map are called...
    Thermometers
  51. An air mass that originates in the Pacific or Atlantic Ocean and bring warm, moist air is called...
    Maritime tropical
  52. What weather effect result when a moving air mass hits a mountain, rises, cools, and loses most of its moisture through precipitation?
  53. Which of these climates is characterized by dense, lush vegetation; broadleaf plants; and high biodiversity?
    Rain forest
  54. Climate does NOT change as a result of...
    General circulation models
  55. Which of the following is NOT an impact of climate changes?
    Change in tidal patterns
  56. The average weather conditions for an arcaover a long period of time is referred to as the arera's
    Climate
  57. Tree rings have been used to measure...
    hundreds to thousands of years
  58. What is the name for the climate of a small area?
    Microclimate
  59. Which of the following rnay decrease tempertures by reflecting sunlight back into space?
    Orbital change
  60. When an air mass encounters a mountain range, the air mass...
    Rises and cools
  61. What do high level of carbon dioxide in an ice core indicate?
  62. Computer climate models that incorporate millions of pieces of data and help sort complex sets of variable are called...
    General circulation models
  63. What do fossils of flower pollen and plants with broad leaves indicate?
    Warm climates
  64. What characteristics do the tropical savanna and tropical rain-forest climate share?
    A small temperature range
  65. Which climate zone has an annual rainfall of less than 25 cm?
    Desert
  66. Specific heat is the amount of energy needed to change the temperature of 1 g of substance by...
    1*C
  67. A telescope that uses a set of lenses to gather and focus light from distant object is a...
    Refracting telescope
  68. A constellation's change in position over several hours is caused by...
    Earth's revolution around the sun
  69. The Northern Hemisphere has the most hours of daylight at the...
    Summer solstice
  70. A light-year equals...
    9.4607 x 1012 km
  71. Invisible electromagnetic radiation was discovered with a...
    Thermometer
  72. One line of evidence of Earth's revolution around the sun is...
    The varying positions of a constellation over a period of weeks
  73. What problem is solved by sending telescopes into space?
    Interference of Earth's atmosphere in detecting eletromagnetic radition
  74. About 99% of all matter contained in the solar nebula now exists in...
    Space
  75. The two inner planets most alike in size, mass, density are...
    Venus and Earth
  76. The early atmosphere developed when many volcanic eruptions released large amounts of gases in a process called...
  77. A rotating cloud of gas and dust from which Earth's solar system form is called a(n)...
    Solar nebula
  78. Uraus's axis...
    Moves in a predictable manner
  79. When fast-moving planets pass slow-moving planets in their orbit, why does it appear as though planet that orbit more slowly than Earth are moving backward?
    Because of reflective movement
  80. The asteroid belt can be found between which two planets?
    Mars and Jupiter
  81. Small bodies from which planets originated during the early formation of the solar system are called...
    Protoplanets
  82. An engineer examining photos discovered volcanoes on...
    Io
  83. Many comets in the Kuiper belt are the result of...
    Collisions between large objects
  84. Characteristics of Ganymede and Callisto are, repectively...
     
  85. Where is the Kuiper belt located?
    Beyond Neptune's orbit
  86. Most of the sun's enery is a result of...
    Nuclear fusion
  87. Auroras are frequently seen...
    After solar flares
  88. Which of the following is NOT a solar ejection?
    Sunspot
  89. Sunspots vary in a cycle that lasts about...
  90. Einstein's equation E=mc helps scientists understand the sun's energy because the equation...
    Explains how mass can be converted into huge amounts of energy
  91. Scientists break up the sun's light into a spectrum using a device called a...
    Spectrograph
  92. Magentic fields on the sun are produced by the sun's uneven rotation and...
    Gases in the convective zone
  93. How long would a star with the sun's mass stay on the main sequence?
    10 billion years
  94. After its temperature rises to 10,000,000*C, a protostar becomes a star when...
    Nuclear fusion begins
  95. What is a quasar?
    Quasi-stellar radio source
  96. What is apparent magnitude?
    The brightness of a star as it appears from Earth
  97. An elliptical galaxy...
    Contains few young stars, has little dust and gas, and is elongated
  98. Astronomer believe that cosmic background radiation formed...
    Shortly after the big bang
  99. The big bang occurred about...
    14 billion years ago
  100. The temperature of cosmic background radiation is...
    Almost absolute zero

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