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

Question 1ExpertLevel 88

In which identification is it most necessary to consider both dew point and freezing point?

ADifference between fog and rainBDifference between wave and tideCDifference between dew and frostDDifference between river and lake

Question 2ExpertLevel 88

If fog is denser in the lower part of a road which cause is likely?

AUpper air is always zeroBRoad soil became lavaCCold moist air has accumulated thereDThere is no vapour there

Question 3ExpertLevel 88

Why is air moisture observed in a frost forecast?

ABecause without moisture deposition of ice crystals will be limitedBBecause moisture always prevents frostCBecause frost has no relation with vapourDBecause moisture makes the surface hot

Question 4ExpertLevel 88

In which situation is dew more likely than frost?

ASurface is above freezing and has cooled to dew pointBSurface is far below freezingCAir is completely dryDIce crystals are present on surface

Question 5ExpertLevel 88

If a polluted city has high relative humidity and calm air why does fog risk increase?

AParticles provide nuclei and calm moist air lets droplets persistBPollution destroys water vapourCCalm air is always dryDHigh humidity prevents fog

Question 6ExpertLevel 88

What common element connects mist and fog with clouds?

AAll three may contain tiny water droplets or ice particlesBAll three form from rocksCAll three have no water vapourDAll three deposit only on land

Question 7ExpertLevel 88

If clouds arrive after frost formation what effect may occur on further cooling?

AClouds may reduce further radiational heat lossBClouds immediately turn surface into lavaCClouds remove vapourDClouds prevent frost from becoming fog so temperature cannot rise

Question 8ExpertLevel 88

If a farmer covers crops to protect them from frost what is the geographical reasoning?

ACover can reduce surface heat loss and limit extreme coolingBCover gives sea water to cropsCCover makes air pressure zeroDCover turns frost into rock

Question 9ExpertLevel 88

If fog is greater at the foot of a hill and less at the summit what does it indicate?

AAccumulation of cold moist air in lower partBVapour is always higher at summitCThere is no air at the footDMountain destroys fog

Question 10ExpertLevel 88

Why does visibility fall sharply when the number of fog droplets increases?

AMore droplets scatter more lightBDroplets remove gravityCDroplets lift soilDDroplets make vapour colourless

Question 11ExpertLevel 88

Why is cooling of lower air important for both fog and mist?

ACooling can condense vapour into tiny dropletsBCooling turns vapour into soilCCooling always makes air zeroDCooling turns droplets into lava

Question 12ExpertLevel 88

When can closeness to an open water surface help dew formation?

AWhen it increases moisture in local airBWhen it makes air completely dryCWhen it makes temperature infiniteDWhen it makes surface volcanic

Question 13ExpertLevel 88

In which condition can morning mist persist longer instead of clearing quickly?

AStrong sunlight and strong dry windBCool stable moist air and weak sunshineCVery hot dry surfaceDComplete absence of vapour

Question 14ExpertLevel 88

If frost is formed on a surface why will it not be called fog?

ABecause frost is solid ice crystals on surface while fog is droplets in airBBecause frost has no waterCBecause fog occurs only inside EarthDBecause frost is always liquid

Question 15ExpertLevel 88

Dew and frost may have the same water vapour source yet why is their final form different?

ASurface temperature above or below freezing changes the stateBWater vapour has two typesCDew does not need atmosphereDFrost forms from dust

Question 16ExpertLevel 88

If very cold dry air is blowing over a field what will be the main limitation for frost formation?

AWind directionBAmount of solar energyCAvailability of water vapourDPresence of ground

Question 17ExpertLevel 88

After sunrise which common process can reduce both dew and fog?

AEvaporationBEarthquakeCSalinityDWeathering

Question 18ExpertLevel 88

What is the best reason why rainfall may not occur even when visibility is low in fog?

AFog droplets are very tiny and suspendedBFog has no waterCVisibility has no relation with waterDFog is always dry air

Question 19ExpertLevel 88

If droplets are in air and floating rather than deposited on the ground what does this indicate?

ADew or frostBFog or mistCOnly snowfallDOnly frost

Question 20ExpertLevel 88

Why is dew generally not considered as damaging to crops as frost?

ADew is liquid droplet while frost can form ice crystals and damage tissuesBDew has no waterCFrost always warms plantsDDew cuts roots

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

Quiz this set

In which identification is it most necessary to consider both dew point and freezing point?

If fog is denser in the lower part of a road which cause is likely?

Why is air moisture observed in a frost forecast?

In which situation is dew more likely than frost?

If a polluted city has high relative humidity and calm air why does fog risk increase?

What common element connects mist and fog with clouds?

If clouds arrive after frost formation what effect may occur on further cooling?

If a farmer covers crops to protect them from frost what is the geographical reasoning?

If fog is greater at the foot of a hill and less at the summit what does it indicate?

Why does visibility fall sharply when the number of fog droplets increases?

Why is cooling of lower air important for both fog and mist?

When can closeness to an open water surface help dew formation?

In which condition can morning mist persist longer instead of clearing quickly?

If frost is formed on a surface why will it not be called fog?

Dew and frost may have the same water vapour source yet why is their final form different?

If very cold dry air is blowing over a field what will be the main limitation for frost formation?

After sunrise which common process can reduce both dew and fog?

What is the best reason why rainfall may not occur even when visibility is low in fog?

If droplets are in air and floating rather than deposited on the ground what does this indicate?

Why is dew generally not considered as damaging to crops as frost?

Quiz result

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

Quiz this set

In which identification is it most necessary to consider both dew point and freezing point?

If fog is denser in the lower part of a road which cause is likely?

Why is air moisture observed in a frost forecast?

In which situation is dew more likely than frost?

If a polluted city has high relative humidity and calm air why does fog risk increase?

What common element connects mist and fog with clouds?

If clouds arrive after frost formation what effect may occur on further cooling?

If a farmer covers crops to protect them from frost what is the geographical reasoning?

If fog is greater at the foot of a hill and less at the summit what does it indicate?

Why does visibility fall sharply when the number of fog droplets increases?

Why is cooling of lower air important for both fog and mist?

When can closeness to an open water surface help dew formation?

In which condition can morning mist persist longer instead of clearing quickly?

If frost is formed on a surface why will it not be called fog?

Dew and frost may have the same water vapour source yet why is their final form different?

If very cold dry air is blowing over a field what will be the main limitation for frost formation?

After sunrise which common process can reduce both dew and fog?

What is the best reason why rainfall may not occur even when visibility is low in fog?

If droplets are in air and floating rather than deposited on the ground what does this indicate?

Why is dew generally not considered as damaging to crops as frost?

Quiz result

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