Clouds and precipitation

Question 1HardLevel 91

Why may heavy rainfall not form when a cloud has many droplets but the droplets are very small?

ABecause small droplets may remain suspended due to insufficient weightBBecause small droplets contain no waterCBecause small droplets always become rocksDBecause small droplets destroy the Sun

Question 2HardLevel 91

How can the presence of water droplets and ice crystals in mixed clouds affect precipitation?

AIt can support both ice-crystal growth and droplet coalescenceBIt stops all precipitation processesCIt makes the cloud moisture-freeDIt keeps air permanently warm

Question 3HardLevel 93

If the leeward slope remains dry after heavy rain on the windward slope this is the result of which combined process?

AOrographic rainfall and rain shadowBConvectional rain and hailCCirrus clouds and snowfallDMist and dew

Question 4HardLevel 93

If drops fall from a cloud but dry before reaching the ground what condition does this show?

AHeavy rainfallBVirgaCHailstormDSnowfall

Question 5HardLevel 93

What is the most important dynamic condition for hail formation in a cumulonimbus cloud?

AWeak horizontal windBVery thin cloudCStrong updraftsDCompletely dry air

Question 6HardLevel 93

What is the direct effect of intense surface heating in convectional rainfall?

AAir immediately becomes dryBIce crystals deposit on the groundCMountain stops rainfallDWarm moist air rises

Question 7HardLevel 93

Why will precipitation not occur if cloud droplets do not become sufficiently large?

AThey will not reach fallable weightBThey will immediately become rockCThey will become vapour-freeDThey will all become hail

Question 8HardLevel 93

Why do cirrus clouds bring little precipitation to the ground despite being high?

AThey are very low and denseBThey are made of rockCThey are thin ice crystal cloudsDThey form only over seas

Question 9HardLevel 93

How can vertical temperature affect the form of precipitation?

ATemperature changes river directionBTemperature has no relation with water stateCRocks aloft form rainDA warm lower layer can melt snowflakes into rain

Question 10HardLevel 93

Why can cloud droplet size remain small when condensation nuclei are very numerous?

AMoisture gets distributed over many tiny surfacesBNuclei always destroy water vapourCNo water remains in the cloudDDroplets immediately become frost

Question 11HardLevel 93

If a cloud is dense but updrafts are weak why will hail chance decrease?

ADense cloud has no waterBStrong upward lift is needed to keep hailstones in the cloudCWeak updraft always gives snowfallDHail forms only in clear sky

Question 12HardLevel 93

Which is the correct sequence in orographic rainfall?

AMoist air rises cools condenses and gives rainBAir descends warms and condensesCAir becomes dry then creates moistureDAir becomes rock then water falls

Question 13HardLevel 93

When moist sea air strikes a coastal mountain where is heavy rainfall more likely?

AOn leeward dry slopeBInside the groundCOn windward sea-facing slopeDAlways equal on both sides

Question 14HardLevel 93

What is the most important difference between cloud droplets and raindrops?

ACloud droplets are small suspended and raindrops are larger fallableBCloud droplets are rockCRaindrops contain no waterDBoth are always the same size

Question 15HardLevel 93

If ice crystals form aloft and completely melt while descending what will reach the ground?

ARainBFrostCFogDMist

Question 16HardLevel 93

Which condition is most necessary for cumulus to develop into cumulonimbus?

AStrong vertical growth and unstable moist airBComplete drynessCCloud becoming stoneDFrost on surface

Question 17HardLevel 93

If a cloud has ice crystals in its upper part and liquid droplets in its lower part what is the main reason?

ACloud has no moistureBCloud is rockCTemperature decreases with heightDOcean salinity

Question 18HardLevel 93

Which droplet feature most helps increase rainfall intensity?

ADrops being numerous and largeBDrops being invisible gasCDrops being rockDDrops being without water vapour

Question 19HardLevel 93

If condensation occurred in a cloud but droplet growth did not occur what result is likely?

ACloud will remain but precipitation will be weak or absentBHeavy hail will be compulsoryCCloud will become rockDEarthquake will occur on ground

Question 20HardLevel 93

Why are cirrus clouds sometimes considered indicators of weather change?

ABecause they always indicate earthquakesBBecause they can appear aloft before broader weather systemsCBecause they dry the seaDBecause they always give immediate hail

Clouds and precipitation

Quiz this set

Why may heavy rainfall not form when a cloud has many droplets but the droplets are very small?

How can the presence of water droplets and ice crystals in mixed clouds affect precipitation?

If the leeward slope remains dry after heavy rain on the windward slope this is the result of which combined process?

If drops fall from a cloud but dry before reaching the ground what condition does this show?

What is the most important dynamic condition for hail formation in a cumulonimbus cloud?

What is the direct effect of intense surface heating in convectional rainfall?

Why will precipitation not occur if cloud droplets do not become sufficiently large?

Why do cirrus clouds bring little precipitation to the ground despite being high?

How can vertical temperature affect the form of precipitation?

Why can cloud droplet size remain small when condensation nuclei are very numerous?

If a cloud is dense but updrafts are weak why will hail chance decrease?

Which is the correct sequence in orographic rainfall?

When moist sea air strikes a coastal mountain where is heavy rainfall more likely?

What is the most important difference between cloud droplets and raindrops?

If ice crystals form aloft and completely melt while descending what will reach the ground?

Which condition is most necessary for cumulus to develop into cumulonimbus?

If a cloud has ice crystals in its upper part and liquid droplets in its lower part what is the main reason?

Which droplet feature most helps increase rainfall intensity?

If condensation occurred in a cloud but droplet growth did not occur what result is likely?

Why are cirrus clouds sometimes considered indicators of weather change?

Quiz result

Clouds and precipitation

Quiz this set

Why may heavy rainfall not form when a cloud has many droplets but the droplets are very small?

How can the presence of water droplets and ice crystals in mixed clouds affect precipitation?

If the leeward slope remains dry after heavy rain on the windward slope this is the result of which combined process?

If drops fall from a cloud but dry before reaching the ground what condition does this show?

What is the most important dynamic condition for hail formation in a cumulonimbus cloud?

What is the direct effect of intense surface heating in convectional rainfall?

Why will precipitation not occur if cloud droplets do not become sufficiently large?

Why do cirrus clouds bring little precipitation to the ground despite being high?

How can vertical temperature affect the form of precipitation?

Why can cloud droplet size remain small when condensation nuclei are very numerous?

If a cloud is dense but updrafts are weak why will hail chance decrease?

Which is the correct sequence in orographic rainfall?

When moist sea air strikes a coastal mountain where is heavy rainfall more likely?

What is the most important difference between cloud droplets and raindrops?

If ice crystals form aloft and completely melt while descending what will reach the ground?

Which condition is most necessary for cumulus to develop into cumulonimbus?

If a cloud has ice crystals in its upper part and liquid droplets in its lower part what is the main reason?

Which droplet feature most helps increase rainfall intensity?

If condensation occurred in a cloud but droplet growth did not occur what result is likely?

Why are cirrus clouds sometimes considered indicators of weather change?

Quiz result

Analytics choices