Clouds and precipitation

Question 1HardLevel 93

What will be the main challenge for rainfed farming on a leeward slope?

ALow rainfall due to rain shadowBHeavy rainfall every dayCSea tide entering fieldsDLack of air at height

Question 2HardLevel 93

Which is the most scientific sequence of precipitation from clouds?

AMoisture cooling condensation droplet growth fallingBLava earthquake rock rainCDryness heat frost rainDSea tide rock drop

Question 3HardLevel 93

Why is the presence of a rain cloud not a certain guarantee of rainfall?

ADroplet growth and lower air conditions can change the final resultBClouds never contain waterCRain forms only inside EarthDClouds are always rocks

Question 4HardLevel 93

In which condition can cyclonic rainfall continue for a longer duration?

AIn a broad front and slow-moving air systemBIn completely dry airCIn clear sky without cloudsDIn surface frost

Question 5HardLevel 93

When ice crystals and supercooled water droplets coexist in a mixed cloud which process can help precipitation form?

AGrowth of ice crystals into fallable particlesBComplete removal of water vapourCCloud changing into rockDLower air becoming a complete vacuum

Question 6HardLevel 93

If surface air has high relative humidity why can the cloud base generally form lower?

ABecause air needs less cooling to reach saturationBBecause air has no water vapourCBecause clouds form only from rocksDBecause high humidity always prevents clouds

Question 7HardLevel 93

If the rising air inside a cloud becomes very weak what effect will it have on heavy rainfall formation?

AGrowth of droplets and ice particles may be limitedBEvery droplet will immediately become hailCMoisture in cloud will increase automaticallyDRainfall will always double

Question 8HardLevel 93

If two clouds have the same water amount but one has many very small droplets where is immediate rainfall less likely?

AIn the cloud with smaller dropletsBIn the cloud with larger dropletsCHeavy rain is certain in bothDNo cloud will form in either

Question 9HardLevel 93

In orographic rainfall if the air has already become dry why will rainfall remain limited even with greater height?

ABecause enough water vapour will not be available for condensationBBecause height always warms airCBecause there is no air on mountainsDBecause dry air always gives hail

Question 10HardLevel 93

In which condition can falling snow from a cloud reach the ground as a mixed form of rain and snow?

AWhen lower air layers are partly warm and partly coldBWhen the whole air is completely dryCWhen the cloud has no water vapourDWhen the ground is lava hot

Question 11HardLevel 93

If droplets move up and down many times in a cumulonimbus cloud why can hailstone size increase?

AA new ice layer can freeze in each cycleBDroplets become rocks in each cycleCUp and down motion removes moistureDHail grows only on the ground

Question 12HardLevel 93

If precipitation drops are large but strong upward motion exists in air why can their fall be delayed?

AUpward air can keep some drops in the cloud for longerBUpward air removes gravityCLarge drops have no waterDUpdraft turns clouds into rocks

Question 13ExpertLevel 91

If cloud droplets are very small but condensation continues why is precipitation not immediately necessary?

ABecause droplets must grow to fallable size and weightBBecause clouds contain no waterCBecause condensation always stops precipitationDBecause tiny droplets are rocks

Question 14ExpertLevel 91

Why does rapid uplift of warm moist air increase the chance of cumulonimbus formation?

ABecause air dries and sinksBBecause unstable air can cause vertical growth and intense condensationCBecause such clouds form only below the seaDBecause warm air has no water vapour

Question 15ExpertLevel 91

If the leeward slope becomes dry after rain on the windward slope what is the main reason?

AMountain removes airBLeeward slope always has more moistureCDescending air warms and becomes unsaturatedDAir forms ice crystals while descending

Question 16ExpertLevel 91

Why can warm air rising over cold air cause cyclonic rainfall?

ABecause warm air is less dense rises and coolsBBecause cold air always disappearsCBecause warm air becomes rockDBecause rainfall is unrelated to air masses

Question 17ExpertLevel 91

If drops falling from a cloud evaporate before reaching the ground how should it be understood?

ASurface floodBHailstormCNormal snowfallDVirga like condition

Question 18ExpertLevel 91

Why can droplets remain small when condensation nuclei are very numerous?

ABecause available moisture is distributed over many tiny surfacesBBecause nuclei destroy water vapourCBecause cloud has no temperatureDBecause droplets only become rocks

Question 19ExpertLevel 91

What can be the main reason for hailstones becoming large in cumulonimbus clouds?

ACloud becoming completely dryBRepeated freezing of ice layers due to strong updraftsCCloud settling on the groundDAbsence of air

Question 20ExpertLevel 91

If ice crystals form aloft and pass through a warm lower air layer what precipitation form can reach the ground?

AFrostBFogCRainDMist

Clouds and precipitation

Quiz this set

What will be the main challenge for rainfed farming on a leeward slope?

Which is the most scientific sequence of precipitation from clouds?

Why is the presence of a rain cloud not a certain guarantee of rainfall?

In which condition can cyclonic rainfall continue for a longer duration?

When ice crystals and supercooled water droplets coexist in a mixed cloud which process can help precipitation form?

If surface air has high relative humidity why can the cloud base generally form lower?

If the rising air inside a cloud becomes very weak what effect will it have on heavy rainfall formation?

If two clouds have the same water amount but one has many very small droplets where is immediate rainfall less likely?

In orographic rainfall if the air has already become dry why will rainfall remain limited even with greater height?

In which condition can falling snow from a cloud reach the ground as a mixed form of rain and snow?

If droplets move up and down many times in a cumulonimbus cloud why can hailstone size increase?

If precipitation drops are large but strong upward motion exists in air why can their fall be delayed?

If cloud droplets are very small but condensation continues why is precipitation not immediately necessary?

Why does rapid uplift of warm moist air increase the chance of cumulonimbus formation?

If the leeward slope becomes dry after rain on the windward slope what is the main reason?

Why can warm air rising over cold air cause cyclonic rainfall?

If drops falling from a cloud evaporate before reaching the ground how should it be understood?

Why can droplets remain small when condensation nuclei are very numerous?

What can be the main reason for hailstones becoming large in cumulonimbus clouds?

If ice crystals form aloft and pass through a warm lower air layer what precipitation form can reach the ground?

Quiz result

Clouds and precipitation

Quiz this set

What will be the main challenge for rainfed farming on a leeward slope?

Which is the most scientific sequence of precipitation from clouds?

Why is the presence of a rain cloud not a certain guarantee of rainfall?

In which condition can cyclonic rainfall continue for a longer duration?

When ice crystals and supercooled water droplets coexist in a mixed cloud which process can help precipitation form?

If surface air has high relative humidity why can the cloud base generally form lower?

If the rising air inside a cloud becomes very weak what effect will it have on heavy rainfall formation?

If two clouds have the same water amount but one has many very small droplets where is immediate rainfall less likely?

In orographic rainfall if the air has already become dry why will rainfall remain limited even with greater height?

In which condition can falling snow from a cloud reach the ground as a mixed form of rain and snow?

If droplets move up and down many times in a cumulonimbus cloud why can hailstone size increase?

If precipitation drops are large but strong upward motion exists in air why can their fall be delayed?

If cloud droplets are very small but condensation continues why is precipitation not immediately necessary?

Why does rapid uplift of warm moist air increase the chance of cumulonimbus formation?

If the leeward slope becomes dry after rain on the windward slope what is the main reason?

Why can warm air rising over cold air cause cyclonic rainfall?

If drops falling from a cloud evaporate before reaching the ground how should it be understood?

Why can droplets remain small when condensation nuclei are very numerous?

What can be the main reason for hailstones becoming large in cumulonimbus clouds?

If ice crystals form aloft and pass through a warm lower air layer what precipitation form can reach the ground?

Quiz result

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