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Subjects

Geography

Forms of condensation: dew, frost, fog, and mist

TOPIC PRACTICE

Quiz this set

Up to 20 questions from this page. Select your focus, then start.

20 questions
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Hard · Level 88 · dew,frost,state difference
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  1. Their final states liquid and solid are different
  2. Neither has water vapour
  3. Both always float in air
  4. Both form only in sea
Hard · Level 88 · dense fog,visibility,safety
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  1. Because tiny droplets scatter light and reduce visibility
  2. Because fog changes sound into light
  3. Because there is no water in air
  4. Because fog erases the road
Hard · Level 88 · mist to fog,saturation,droplet concentration
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  1. When lower air becomes more saturated and droplet concentration increases
  2. When air becomes completely dry
  3. When all droplets become stone
  4. When high temperature removes moisture
Hard · Level 88 · frost warning,crops,agriculture
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  1. Because ice crystals can damage tissues
  2. Because dew always burns crops
  3. Because fog turns soil into stone
  4. Because frost instantly ripens crops
Hard · Level 88 · dew,frost,freezing surface
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  1. When surface temperature falls below freezing point
  2. When temperature rises greatly at noon
  3. When air is completely dry
  4. When there is no surface
Hard · Level 88 · mist,fog,similarity difference
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  1. Both form from droplets but fog reduces visibility more
  2. Both are ice crystals and visibility is same
  3. Mist is water and fog is rock
  4. Mist is not in air and fog is on surface
Hard · Level 88 · fog dissipation,sunrise,evaporation
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  1. Surface heating and evaporation of droplets
  2. Vapour becoming rock
  3. Air disappearing
  4. Sun becoming cold
Hard · Level 88 · dew,relative humidity,surface cooling
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  1. Surface cooling brings air close to saturation
  2. Vapour disappears from surface
  3. Cold surface always dries air
  4. Air pressure completely disappears
Hard · Level 88 · frost,moisture,low temperature
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  1. Because sufficient water vapour in air is also needed
  2. Because frost forms only on hot surface
  3. Because frost has no water vapour
  4. Because temperature has no relation to frost
Hard · Level 88 · fog,mist,condensation forms
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  1. Because water vapour cools and changes into tiny droplets
  2. Because they form by rock weathering
  3. Because they come from earthquakes
  4. Because they are completely dry air
Hard · Level 88 · frost,shade,melting
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  1. Ice crystals melt later because shaded areas receive less heat
  2. Frost always keeps forming new in shade
  3. Sunlight turns frost into stone
  4. Shaded areas have no water vapour
Hard · Level 88 · dew,frost,surface temperature
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  1. Because different surfaces can have different temperatures
  2. Because vapour cannot reach metal
  3. Because frost never forms on grass
  4. Because dew and frost have no relation with temperature
Medium · Level 89 · dew,surface droplets,fog mist difference
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  1. Fog
  2. Mist
  3. Dew
  4. Frost
Hard · Level 89 · dew,dew point,freezing point
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  1. Dew
  2. Frost
  3. Fog
  4. Mist
Hard · Level 89 · frost,deposition,ice crystals
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  1. Dew formation
  2. Frost formation
  3. Mist formation
  4. Rain formation
Hard · Level 89 · valley fog,cold air,saturation
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  1. Valleys always contain warm air
  2. Valleys destroy water vapour
  3. Cold moist air collects in the valley and mixes less
  4. Air pressure becomes zero in valleys
Hard · Level 89 · mist,fog,visibility
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  1. Visibility is much lower in mist than fog
  2. Visibility is always the same in both
  3. Fog has no water droplets
  4. Fog reduces visibility more than mist
Hard · Level 89 · dew,clear night,calm air
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  1. Surface cools by radiation and the moist layer remains
  2. The Sun heats the surface at night
  3. Water vapour is completely removed from air
  4. Clouds keep the surface below freezing
Hard · Level 89 · dew,cloud cover,radiational cooling
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  1. Clouds turn water vapour into soil
  2. Clouds reduce radiational heat loss from the ground
  3. Clouds make every surface very cold
  4. Clouds remove condensation nuclei
Hard · Level 89 · dew,strong wind,moist layer
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  1. It removes the cool moist layer near the surface
  2. It always cools the surface to dew point
  3. It directly turns vapour into ice
  4. It makes the night cloudless