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 (B)</p> Signup and view all the answers

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

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

Where is the relative humidity greater according to the text?

<p>Over oceans (B)</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 (C)</p> Signup and view all the answers

What is the transformation of water vapor into water called?

<p>Condensation (A)</p> Signup and view all the answers

Under what conditions is dew formed?

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

What causes fog and mist to form?

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

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

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

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

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

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

<p>Stratus clouds (A)</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 (C)</p> Signup and view all the answers

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

<p>Dew (A)</p> Signup and view all the answers

What is the ideal condition for forming frost?

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

What is precipitation?

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

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

<p>Snowfall (C)</p> Signup and view all the answers

What are hailstones formed from?

<p>Rainwater passing through colder layers (A)</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 (D)</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 (D)</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 (B)</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 (B)</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 (B)</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; (B)</p> Signup and view all the answers

What are clouds formed from in convectional rainfall?

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

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

<p>Convectional rain (C)</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 (C)</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 (C)</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 (D)</p> Signup and view all the answers

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

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

From where does the moisture in the atmosphere come from?

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

What is the term for water vapor turning into water?

<p>Condensation (D)</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 (C)</p> Signup and view all the answers

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

<p>Evaporation (A)</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 (D)</p> Signup and view all the answers

Under what conditions is dew formed?

<p>Low wind speed and high relative humidity (B)</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 (A)</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 (C)</p> Signup and view all the answers

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

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

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

<p>Stratus (D)</p> Signup and view all the answers

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

<p>Altostratus clouds (B)</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 (C)</p> Signup and view all the answers

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

<p>Cirrocumulus clouds (B)</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 (A)</p> Signup and view all the answers

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

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

At what height are nimbus clouds generally formed?

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

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

<p>Formation of dew (C)</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' (D)</p> Signup and view all the answers

Where is the relative humidity greater according to the text?

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

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

<p>Evaporation point (A)</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 (D)</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 (C)</p> Signup and view all the answers

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

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

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

<p>Stratus clouds (B)</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 (D)</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 (B)</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 (C)</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 (D)</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 (C)</p> Signup and view all the answers

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

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

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

<p>Stratus (A)</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 (D)</p> Signup and view all the answers

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

<p>Stratus (B)</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 (A)</p> Signup and view all the answers

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

<p>Stratus (B)</p> Signup and view all the answers

In what forms is water present in the atmosphere?

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

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

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

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

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

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

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

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

<p>Convectional rain (A)</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 (B)</p> Signup and view all the answers

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

<p>Frost (B)</p> Signup and view all the answers

At what height are nimbus clouds generally formed?

<p>Low altitude (A)</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 (C)</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 (B)</p> Signup and view all the answers

Under what conditions is dew formed?

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

Where does the moisture in the atmosphere come from?

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

In what forms is water present in the atmosphere?

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

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