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

Question 1ExpertLevel 88

What can cause dew on a surface and mist in air to form together?

ACooling of both surface and lower air with moistureBCompletely dry air and hot surfaceCAbsence of water vapourDOnly earthquake

Question 2ExpertLevel 88

Which group of clues is most scientific for identifying dew frost fog and mist?

ASurface liquid droplets surface ice crystals dense droplet mass in air and lighter droplet mass in airBSoil colour river speed mountain height and rock hardnessCVolcano lava earthquake and tideDSun distance moon size and planet number

Question 3ExpertLevel 88

If the surface is cold at night but the air above is dry and well mixed why can both dew and fog remain limited?

ABecause dry well-mixed air weakens both moisture supply and stable surface layerBBecause a cold surface always creates heavy rainCBecause fog and dew are unrelated to water vapourDBecause air mixing turns vapour into icy mountains

Question 4ExpertLevel 89

What is the main process behind water droplets forming on grass after strong radiational cooling on a clear night?

ADewBFrostCFogDMist

Question 5ExpertLevel 89

If the surface temperature is below freezing and water vapour changes directly into ice crystals, which form will develop?

AMistBFrostCDewDFog

Question 6ExpertLevel 89

When dense tiny water droplets in the lower atmosphere greatly reduce visibility, what condition is it called?

ADewBFrostCFogDMist

Question 7ExpertLevel 89

Which condensation form is less dense than fog and generally allows greater visibility?

AFrostBDewCDense fogDMist

Question 8ExpertLevel 89

Why do calm air and clear sky favour dew formation?

AThey enhance ground radiational coolingBThey stop evaporation and warm the airCThey form clouds and keep the surface warmDThey greatly increase turbulence

Question 9ExpertLevel 89

Compared with dew formation, what is the most decisive additional condition for frost formation?

AVery strong daytime heatBSurface being below freezing pointCSea breeze becoming warmDSudden fall in air pressure

Question 10ExpertLevel 89

Why is fog often seen in river valleys after night?

AValleys remain always dryBAir in valleys rises and becomes very warmCCold dense air and moisture collect in valleysDSun rays reach valleys first

Question 11ExpertLevel 89

What is the most accurate physical difference between dew and frost?

ABoth form only in high cloudsBDew is ice and frost is liquid waterCBoth form only after rainfallDDew is liquid droplets and frost is ice crystals

Question 12ExpertLevel 89

Which condition is most suitable for radiation fog formation?

ALong clear calm night with moist lower airBVery dry and hot strong windCIntense afternoon convectionDAvalanche on high mountains

Question 13ExpertLevel 89

Warm moist air moves over a cold surface near a coast and cools horizontally into droplets. Which type of fog is this?

ARadiation fogBUpslope fogCAdvection fogDDust fog

Question 14ExpertLevel 89

Why can frost be more damaging to crops than dew?

ABecause frost always warms soilBBecause frost forms only in dry airCBecause frost immediately increases evaporationDBecause ice crystals can damage tender plant cells

Question 15ExpertLevel 89

Which statement best describes the role of a cold surface in dew formation?

AThe surface cools nearby air to dew pointBThe surface completely destroys water vapourCThe surface pulls clouds downwardDThe surface makes air pressure zero

Question 16ExpertLevel 89

If morning visibility is slightly reduced but objects are still relatively clear, which form is more likely?

ADense fogBFrostCMistDHail

Question 17ExpertLevel 89

In which condition is dew formation least likely?

AClear night and calm airBHigh relative humidityCStrong radiational cooling of grassDStrong wind and cloudy night

Question 18ExpertLevel 89

Moist air climbs a hill slope, cools, and forms fog near the surface. What is it called?

AAdvection fogBUpslope fogCRadiation frostDGrass dew

Question 19ExpertLevel 89

If air temperature and dew point become very close, which possibility increases?

AAir becoming completely dryBSky becoming permanently clearCFormation of fog or mistDFreezing of seawater

Question 20ExpertLevel 89

Why are dew droplets often first visible on grass, leaves, and metal?

ABecause they create water vapourBBecause they always attract cloudsCBecause they stop rainfallDBecause these surfaces cool quickly and provide condensation sites

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

Quiz this set

What can cause dew on a surface and mist in air to form together?

Which group of clues is most scientific for identifying dew frost fog and mist?

If the surface is cold at night but the air above is dry and well mixed why can both dew and fog remain limited?

What is the main process behind water droplets forming on grass after strong radiational cooling on a clear night?

If the surface temperature is below freezing and water vapour changes directly into ice crystals, which form will develop?

When dense tiny water droplets in the lower atmosphere greatly reduce visibility, what condition is it called?

Which condensation form is less dense than fog and generally allows greater visibility?

Why do calm air and clear sky favour dew formation?

Compared with dew formation, what is the most decisive additional condition for frost formation?

Why is fog often seen in river valleys after night?

What is the most accurate physical difference between dew and frost?

Which condition is most suitable for radiation fog formation?

Warm moist air moves over a cold surface near a coast and cools horizontally into droplets. Which type of fog is this?

Why can frost be more damaging to crops than dew?

Which statement best describes the role of a cold surface in dew formation?

If morning visibility is slightly reduced but objects are still relatively clear, which form is more likely?

In which condition is dew formation least likely?

Moist air climbs a hill slope, cools, and forms fog near the surface. What is it called?

If air temperature and dew point become very close, which possibility increases?

Why are dew droplets often first visible on grass, leaves, and metal?

Quiz result

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

Quiz this set

What can cause dew on a surface and mist in air to form together?

Which group of clues is most scientific for identifying dew frost fog and mist?

If the surface is cold at night but the air above is dry and well mixed why can both dew and fog remain limited?

What is the main process behind water droplets forming on grass after strong radiational cooling on a clear night?

If the surface temperature is below freezing and water vapour changes directly into ice crystals, which form will develop?

When dense tiny water droplets in the lower atmosphere greatly reduce visibility, what condition is it called?

Which condensation form is less dense than fog and generally allows greater visibility?

Why do calm air and clear sky favour dew formation?

Compared with dew formation, what is the most decisive additional condition for frost formation?

Why is fog often seen in river valleys after night?

What is the most accurate physical difference between dew and frost?

Which condition is most suitable for radiation fog formation?

Warm moist air moves over a cold surface near a coast and cools horizontally into droplets. Which type of fog is this?

Why can frost be more damaging to crops than dew?

Which statement best describes the role of a cold surface in dew formation?

If morning visibility is slightly reduced but objects are still relatively clear, which form is more likely?

In which condition is dew formation least likely?

Moist air climbs a hill slope, cools, and forms fog near the surface. What is it called?

If air temperature and dew point become very close, which possibility increases?

Why are dew droplets often first visible on grass, leaves, and metal?

Quiz result

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