Atmospheric Water and Weather Phenomena
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Questions and Answers

What is the actual amount of water vapour present in the atmosphere known as?

  • Relative humidity
  • Absolute humidity (correct)
  • Solid moisture
  • Gaseous humidity

    • Where does the moisture in the atmosphere come from?

  • Cloud condensation
  • Atmospheric pollution
  • Evaporation and transpiration (correct)
  • Volcanic eruptions

    • What is the name for the percentage of moisture present in the atmosphere as compared to its full capacity at a given temperature?

  • Liquid moisture
  • Gaseous humidity
  • Relative humidity (correct)
  • Absolute humidity

    • In what forms is water present in the atmosphere?

    <p>Gaseous, liquid, and solid</p> Signup and view all the answers

    What is the weight of water vapour per unit volume of air called?

    <p>Absolute humidity</p> Signup and view all the answers

    Where is the relative humidity greater according to the text?

    <p>Over oceans</p> Signup and view all the answers

    What is the temperature at which the water starts evaporating referred to as?

    <p>Latent heat of vaporization</p> Signup and view all the answers

    What is the transformation of water vapor into water called?

    <p>Condensation</p> Signup and view all the answers

    Under what conditions is dew formed?

    <p>Cold nights and low relative humidity</p> Signup and view all the answers

    What is the ideal condition for the formation of white frost?

    <p>Air temperature at or below freezing point and the same conditions as dew formation</p> Signup and view all the answers

    What causes fog and mist to form?

    <p>Mixing of warm and cold air currents</p> Signup and view all the answers

    At what height are nimbus clouds generally formed?

    <p>Middle levels or very near to the surface of the earth</p> Signup and view all the answers

    What type of clouds are thin, detached, and have a feathery appearance?

    <p>Cirrus clouds</p> Signup and view all the answers

    Which type of clouds look like cotton wool and exist in patches?

    <p>Cumulus clouds</p> Signup and view all the answers

    'Layered clouds covering large portions of the sky' are characteristic of which cloud type?

    <p>Stratus clouds</p> Signup and view all the answers

    What is another name for 'mini clouds in which condensation takes place around nuclei provided by dust, smoke, and salt particles'?

    <p>Nimbus clouds</p> Signup and view all the answers

    What forms when moist air comes in contact with some colder object?

    <p>Dew</p> Signup and view all the answers

    What is the ideal condition for forming frost?

    <p>Calm air and low temperatures</p> Signup and view all the answers

    What is precipitation?

    <p>The release of moisture in the form of rain or snow</p> Signup and view all the answers

    In which form does precipitation occur when the temperature is lower than 0°C?

    <p>Snowfall</p> Signup and view all the answers

    What are hailstones formed from?

    <p>Rainwater passing through colder layers</p> Signup and view all the answers

    What type of rainfall occurs when air on being heated becomes light and rises up in convection currents?

    <p>Convectional rain</p> Signup and view all the answers

    Which type of rainfall is characterized by the windward slopes receiving greater rainfall and the leeward slopes remaining rainless and dry?

    <p>Orographic rain</p> Signup and view all the answers

    Where do coastal areas receive greater amounts of rainfall compared to the interior of continents?

    <p>On the windward slopes along western coasts</p> Signup and view all the answers

    In which areas do major precipitation regimes receive heavy rainfall of over 200 cm per annum?

    <p>Equatorial belt</p> Signup and view all the answers

    What characterizes the seasonal distribution of rainfall in some regions such as the equatorial belt?

    <p>Even distribution throughout the year</p> Signup and view all the answers

    What happens to air as it rises in orographic rainfall?

    <p>&quot;It expands and loses heat&quot;</p> Signup and view all the answers

    What are clouds formed from in convectional rainfall?

    <p>Moisture condensed from rising air</p> Signup and view all the answers

    In which type of rainfall do thunder and lightning often accompany heavy rainfall?

    <p>Convectional rain</p> Signup and view all the answers

    Why do leeward slopes remain rainless and dry in orographic rainfall?

    <p>The descending air on leeward slopes warms up and becomes dry</p> Signup and view all the answers

    What is the term for the percentage of moisture present in the atmosphere as compared to its full capacity at a given temperature?

    <p>Relative humidity</p> Signup and view all the answers

    What is the actual amount of the water vapor present in the atmosphere known as?

    <p>Absolute humidity</p> Signup and view all the answers

    What is the weight of water vapor per unit volume of air called?

    <p>Absolute humidity</p> Signup and view all the answers

    From where does the moisture in the atmosphere come from?

    <p>Evaporation and transpiration</p> Signup and view all the answers

    What is the term for water vapor turning into water?

    <p>Condensation</p> Signup and view all the answers

    What is the term used to express the amount of water vapor present in the atmosphere in grams per cubic meter?

    <p>Absolute humidity</p> Signup and view all the answers

    What is the process by which water is transformed from liquid to gaseous state?

    <p>Evaporation</p> Signup and view all the answers

    What is the temperature at which the water starts evaporating referred to as?

    <p>Latent heat of vapourisation</p> Signup and view all the answers

    Under what conditions is dew formed?

    <p>Low wind speed and high relative humidity</p> Signup and view all the answers

    What are the ideal conditions for the formation of white frost?

    <p>Clear sky, calm air, high relative humidity, and cold nights</p> Signup and view all the answers

    What are clouds formed from in free air at considerable elevations?

    <p>Water droplets or tiny crystals of ice</p> Signup and view all the answers

    What type of clouds are formed at high altitudes with a feathery appearance?

    <p>Cirrus clouds</p> Signup and view all the answers

    What is another name for 'mini clouds in which condensation takes place around nuclei provided by dust, smoke, and salt particles'?

    <p>Fog</p> Signup and view all the answers

    'Layered clouds covering large portions of the sky' are characteristic of which cloud type?

    <p>Stratus</p> Signup and view all the answers

    What is the name for the layered clouds covering large portions of the sky?

    <p>Altostratus clouds</p> Signup and view all the answers

    In which type of rainfall do the windward slopes receive greater rainfall and the leeward slopes remain rainless and dry?

    <p>Orographic rain</p> Signup and view all the answers

    What type of clouds are thin, detached, and have a feathery appearance?

    <p>Cirrocumulus clouds</p> Signup and view all the answers

    What characterizes the seasonal distribution of rainfall in some regions such as the equatorial belt?

    <p>Even distribution throughout the year</p> Signup and view all the answers

    Which type of clouds look like cotton wool and exist in patches?

    <p>Stratocumulus clouds</p> Signup and view all the answers

    At what height are nimbus clouds generally formed?

    <p>Low level</p> Signup and view all the answers

    What happens when moist air comes in contact with a colder object?

    <p>Formation of dew</p> Signup and view all the answers

    'Mini clouds in which condensation takes place around nuclei provided by dust, smoke, and salt particles' are also known as:

    <p>'Stratocumulus clouds'</p> Signup and view all the answers

    Where is the relative humidity greater according to the text?

    <p>Over the oceans than on landmasses</p> Signup and view all the answers

    What is the temperature at which water starts evaporating referred to as?

    <p>Evaporation point</p> Signup and view all the answers

    Why do leeward slopes remain rainless and dry in orographic rainfall?

    <p>Due to adiabatic warming of air during descent</p> Signup and view all the answers

    What is the term used to express the amount of water vapor present in the atmosphere in grams per cubic meter?

    <p>Absolute humidity</p> Signup and view all the answers

    What is the name for the layered clouds covering large portions of the sky?

    <p>Stratus clouds</p> Signup and view all the answers

    What is another name for 'mini clouds in which condensation takes place around nuclei provided by dust, smoke, and salt particles'?

    <p>Altocumulus clouds</p> Signup and view all the answers

    What type of rainfall is characterized by the windward slopes receiving greater rainfall and the leeward slopes remaining rainless and dry?

    <p>Orographic rainfall</p> Signup and view all the answers

    'Layered clouds covering large portions of the sky' are characteristic of which cloud type?

    <p>Stratus clouds</p> Signup and view all the answers

    Where do coastal areas receive greater amounts of rainfall compared to the interior of continents?

    <p>Equatorial regions</p> Signup and view all the answers

    What is the term for the process by which water is transformed from liquid to gaseous state?

    <p>Evaporation</p> Signup and view all the answers

    What is the temperature at which the water starts evaporating referred to as?

    <p>Latent heat of vaporization</p> Signup and view all the answers

    What is the term used to express the amount of water vapor present in the atmosphere in grams per cubic meter?

    <p>Vapor density</p> Signup and view all the answers

    What is another name for 'mini clouds in which condensation takes place around nuclei provided by dust, smoke, and salt particles'?

    <p>Fog</p> Signup and view all the answers

    In which type of rainfall does thunder and lightning often accompany heavy rainfall?

    <p>Convectional rainfall</p> Signup and view all the answers

    'Layered clouds covering large portions of the sky' are characteristic of which cloud type?

    <p>Stratus</p> Signup and view all the answers

    'Mini clouds in which condensation takes place around nuclei provided by dust, smoke, and salt particles' are also known as:

    <p>Mist</p> Signup and view all the answers

    'Layered clouds covering large portions of the sky' are characteristic of which cloud type?

    <p>Stratus</p> Signup and view all the answers

    'Mini clouds in which condensation takes place around nuclei provided by dust, smoke, and salt particles' are also known as:

    <p>Mist</p> Signup and view all the answers

    'Layered clouds covering large portions of the sky' are characteristic of which cloud type?

    <p>Stratus</p> Signup and view all the answers

    In what forms is water present in the atmosphere?

    <p>Dew and fog</p> Signup and view all the answers

    What happens when moist air comes in contact with a colder object?

    <p>It results in condensation</p> Signup and view all the answers

    What is the term for the layered clouds covering large portions of the sky?

    <p>Stratus clouds</p> Signup and view all the answers

    What type of clouds are formed at high altitudes with a feathery appearance?

    <p>Cirrus clouds</p> Signup and view all the answers

    In which type of rainfall do thunder and lightning often accompany heavy rainfall?

    <p>Convectional rain</p> Signup and view all the answers

    What characterizes the seasonal distribution of rainfall in some regions such as the equatorial belt?

    <p>Even distribution throughout the year</p> Signup and view all the answers

    What forms when moist air comes in contact with some colder object?

    <p>Frost</p> Signup and view all the answers

    At what height are nimbus clouds generally formed?

    <p>Low altitude</p> Signup and view all the answers

    'Mini clouds in which condensation takes place around nuclei provided by dust, smoke, and salt particles' are also known as:

    <p>Cirrus clouds</p> Signup and view all the answers

    What is the term used to express the amount of water vapor present in the atmosphere in grams per cubic meter?

    <p>Absolute humidity</p> Signup and view all the answers

    Under what conditions is dew formed?

    <p>Low temperature and low humidity</p> Signup and view all the answers

    Where does the moisture in the atmosphere come from?

    <p>Evaporation from oceans and lakes</p> Signup and view all the answers

    In what forms is water present in the atmosphere?

    <p>Vapor, liquid, and solid</p> Signup and view all the answers

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