Academic Practice #2

50 Questions

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Academic Practice #2


Questions and Answers
  • 1. 
    Changes in weather are caused by 
    • A. 

      Air's temperature, water vapor content, and pressure.

    • B. 

      Atmosphere, wind, heat.

    • C. 

      atmospheric pressure, moisture.

    • D. 

      All are correct.

  • 2. 
    Water vapor in the air is called 
    • A. 

      Rain

    • B. 

      Fog

    • C. 

      Steam

    • D. 

      Humidity

  • 3. 
    Weather is the condition of the atmosphere expressed in terms of
    • A. 

      air's temperature, pressure, and water vapor content.

    • B. 

      Heat, pressure, cold and wind.

    • C. 

      Cold air, warm air, pressure, and water vapor content.

    • D. 

      Heat, pressure, wind, and moisture.

  • 4. 
    What is convection? 
    • A. 

      Automatic temperature change in rising or falling air

    • B. 

      Air heated by the Earth rises and is replaced by cooler air descending from higher altitudes

    • C. 

      Ocean of air immediately above the Earth's surface

    • D. 

      Transitional zone between the troposphere and near void of the stratosphere Transitional zone between the troposphere and near void of the stratosphere

  • 5. 
    Why is the air circulation in the troposphere important?
    • A. 

      Pilots favor this level for flying.

    • B. 

      Extremely high and deadly temperatures exist in this level.

    • C. 

      Troposphere is the end of our air ocean; beyond it is outer space.

    • D. 

      Determines the weather.

  • 6. 
    How many atoms of hydrogen are in an ozone molecule?
    • A. 

      Two

    • B. 

      Three

    • C. 

      Four

    • D. 

      Six

  • 7. 
    What is the boiling point of the Celsius scale? 
    • A. 

      25 degrees

    • B. 

      32 degrees

    • C. 

      100 degrees

    • D. 

      212 degrees

  • 8. 
    What is a stationary front?
    • A. 

      Violent frontal system

    • B. 

      When warm moves over cold

    • C. 

      When neither warm nor cold air masses advance on each other

    • D. 

      The boundary between warm and cold

  • 9. 
    In what atmospheric layer are the Van Allen radiation belts? 
    • A. 

      Mesosphere

    • B. 

      Chemosphere

    • C. 

      Exosphere

    • D. 

      Thermosphere

  • 10. 
    Relative humidity and dew point are measured by using the 
    • A. 

      Celsius scale thermometer.

    • B. 

      Milliards.

    • C. 

      Aneroid barometer.

    • D. 

      Psychrometer.

  • 11. 
    What atmospheric layer is the ocean of air immediately above the Earth's surface? 
    • A. 

      Exosphere

    • B. 

      Thermosphere

    • C. 

      Mesosphere

    • D. 

      Troposphere

  • 12. 
    What atmospheric layer lies just above the tropopause and extends to an altitude of about 30 miles? 
    • A. 

      Chemosphere

    • B. 

      Ionosphere

    • C. 

      Stratosphere

    • D. 

      Exosphere

  • 13. 
    What is the topmost layer or outer fringe of the atmosphere?
    • A. 

      Chemosphere

    • B. 

      Exosphere

    • C. 

      Thermosphere

    • D. 

      Ionosphere

  • 14. 
    Another name for the Ozone Layer is the 
    • A. 

      Stratosphere

    • B. 

      Exosphere.

    • C. 

      Chemosphere.

    • D. 

      Ionosphere

  • 15. 
    Who invented the thermometer? 
    • A. 

      Bjerknes

    • B. 

      Galileo

    • C. 

      Leverrier

    • D. 

      Normandy

  • 16. 
    Weather is the condition of the
    • A. 

      Temperature

    • B. 

      Atmosphere

    • C. 

      Water vapor

    • D. 

      Air

  • 17. 
    When warm and cold air masses come together, the boundary between them is called a 
    • A. 

      Thermal front.

    • B. 

      Weather front.

    • C. 

      Front.

    • D. 

      Stationary front.

  • 18. 
    What is the closest atmospheric layer to the earth? 
    • A. 

      Stratosphere

    • B. 

      Exosphere

    • C. 

      Troposphere

    • D. 

      Thermosphere

  • 19. 
    An air mass is a large body of air with
    • A. 

      The same temperature and pressure.

    • B. 

      the same humidity and pressure.

    • C. 

      The same temperature and humidity.

    • D. 

      None of the answers are correct.

  • 20. 
    What is the freezing point of water? 
    • A. 

      60 degrees Celsius

    • B. 

      -2 degrees Celsius

    • C. 

      0 degrees Celsius

    • D. 

      32 degrees Celsius

  • 21. 
    The relative humidity of an air mass ___________ as that air mass cools. 
    • A. 

      Increases

    • B. 

      Decreases

    • C. 

      stays the same

    • D. 

      Decreases to dew point, then increases

  • 22. 
    The temperature at which a given body of air reaches saturation is called 
    • A. 

      relative humidity.

    • B. 

      Condensation level

    • C. 

      dew point.

    • D. 

      Relative temperature.

  • 23. 
    A cubic foot of water at the ocean's surface weighs about the same as a cubic foot from the bottom of the Marianas Trench because 
    • A. 

      The chemical makeup of both is the same

    • B. 

      Water at the surface has a greater density than water at the bottom.

    • C. 

      Water is nearly incompressible.

    • D. 

      Water at the bottom has a greater density than water at the surface.

  • 24. 
    The five principal layers of the atmosphere arranged from lowest to highest are 
    • A. 

      Stratosphere, troposphere, mesosphere, thermosphere and exosphere.

    • B. 

      troposphere, stratosphere, mesosphere, thermosphere and exosphere.

    • C. 

      Mesosphere, troposphere, stratosphere, thermosphere and exosphere.

    • D. 

      Thermosphere, mesosphere, troposphere, stratosphere, and exosphere.

  • 25. 
    Nearly all clouds are in what atmospheric layer? 
    • A. 

      Stratosphere

    • B. 

      Ionosphere

    • C. 

      Troposphere

    • D. 

      Exosphere

  • 26. 
    Temperature in the stratosphere averages a fairly constant 
    • A. 

      0 degrees F to 20 degrees F.

    • B. 

      15 degrees F to 50 degrees F.

    • C. 

      60 degrees F to 100 degrees F.

    • D. 

      -40 degrees F to -50 degrees F.

  • 27. 
    What is meteorology? 
    • A. 

      Weather prediction and scientific research

    • B. 

      Science of weather

    • C. 

      Study of air current advantages

    • D. 

      Development of weather instruments

  • 28. 
    Barometers may be graduated in either inches of mercury or _____________. 
    • A. 

      Water

    • B. 

      Millibars

    • C. 

      Humidity

    • D. 

      None of the answers are correct

  • 29. 
    "Nimbus" is a word that means:
    • A. 

      Rain

    • B. 

      Thunder

    • C. 

      Lightning

    • D. 

      Hail

  • 30. 
    Cumulonimbus denotes very dense clouds whose thunderheads start at almost any altitude and may extend to heights of as much as 
    • A. 

      7,000 feet.

    • B. 

      20,000 feet

    • C. 

      75,000 feet.

    • D. 

      99,000 feet.

  • 31. 
    Water vapor that condenses on objects that have cooled below the condensation point of the air around it is known as 
    • A. 

      Dew

    • B. 

      Fog

    • C. 

      Frost

    • D. 

      Snow

  • 32. 
    Clouds are formed by
    • A. 

      Rising moisture from the earth that condenses when it meets cooler air aloft.

    • B. 

      Moisture from frozen carbon dioxide.

    • C. 

      Ice crystal meeting silver iodide in the upper atmosphere.

    • D. 

      Moisture droplets.

  • 33. 
    What do we call low-lying clouds that nearly touch the surface of the Earth? 
    • A. 

      Rain.

    • B. 

      Fog.

    • C. 

      Steam.

    • D. 

      All of the answers are correct.

  • 34. 
    Water vapor that changes directly into ice crystals on contact with objects on Earth, without first changing into dew, is called
    • A. 

      Fog

    • B. 

      Steam

    • C. 

      Snow

    • D. 

      Frost

  • 35. 
    What type of precipitation can be expected from stratus clouds? 
    • A. 

      Snow

    • B. 

      Drizzle

    • C. 

      Heavy rain

    • D. 

      Thunderstorms

  • 36. 
    Which of the following statements best describes steam fog?
    • A. 

      A low-lying cloud, near or touching the surface of the earth

    • B. 

      Usually lifts before noon, having been "burned" away by the sun

    • C. 

      Indicates that clear and cold weather can be forecast

    • D. 

      Formed by air saturation

  • 37. 
    What are three steps in the atmospheric water cycle? 
    • A. 

      Convection, Adiabatic, and Transpiration

    • B. 

      Heat, Pressure, and Wind

    • C. 

      Evaporation, Condensation, and Precipitation

    • D. 

      Evaporation, Transpiration, and Convection

  • 38. 
    The two elements necessary for the formation of a cloud are 
    • A. 

      Water and solar energy.

    • B. 

      Hygroscope nuclei and dust.

    • C. 

      Water vapor and hygroscope nuclei.

    • D. 

      Hygroscope nuclei and energy from the sun.

  • 39. 
    What cloud is the lowest cloud type? 
    • A. 

      Cumulonimbus

    • B. 

      Nimbostratus

    • C. 

      Cirrus

    • D. 

      Stratus

  • 40. 
    Precipitation is 
    • A. 

      Volcanic ash.

    • B. 

      Rain, snow, sleet and hail.

    • C. 

      Dust.

    • D. 

      Nuclear fallout.

  • 41. 
    Fog formation requires the presence of___________. 
    • A. 

      Warm temperature only

    • B. 

      Cold temperature only

    • C. 

      A combination of warm and cold temperature

    • D. 

      clouds

  • 42. 
    Hail usually occurs in the _________________
    • A. 

      Spring

    • B. 

      Fall

    • C. 

      Winter

    • D. 

      Summer

  • 43. 
    Clouds are usually named according to their 
    • A. 

      Height

    • B. 

      Appearence

    • C. 

      Elevation above ground.

    • D. 

      water phase (solid or liquid).

  • 44. 
    Clouds have been leading lost seaman, navigators, and explorers to land since the days of the earliest seaman.
    • A. 

      True

    • B. 

      False

  • 45. 
    Middle clouds with bases beginning about 10,000 feet are denoted by the prefix 
    • A. 

      strato.

    • B. 

      Nimbo

    • C. 

      Alto

    • D. 

      cumulo.

  • 46. 
    Clouds are usually named according to their 
    • A. 

      height.

    • B. 

      Appearance.

    • C. 

      Elevation above ground.

    • D. 

      Water phase (solid or liquid).

  • 47. 
    The presence of Altocumulus clouds means _________________. 
    • A. 

      It will snow

    • B. 

      That rain will probably occur within twenty-four hours

    • C. 

      it will sleet

    • D. 

      Nothing will occur

  • 48. 
    Fragments of matter that are present in the atmosphere and essential to cloud formation are called 
    • A. 

      rain dust.

    • B. 

      "seeds."

    • C. 

      Hydronuclei.

    • D. 

      hygroscopic nuclei.

  • 49. 
    • A. 

      Cirrus, alto, or nimbus

    • B. 

      Low, middle, or high

    • C. 

      Cirrus, cumulus, or stratus

    • D. 

      Small, medium, or large

  • 50. 
    Why do clouds form above islands? 
    • A. 

      Mountains stop the cloud movement

    • B. 

      Moisture rises from vegetation, meets cooler air and condenses

    • C. 

      Land is cooler than water

    • D. 

      There is no wind over the island