Clouds and precipitation

Question 1ExpertLevel 91

If high cirrus is followed by lower dense clouds how can weather change be explained?

AIt may indicate an approaching developing weather systemBIt is a certain sign of earthquakeCIt indicates drying of the seaDIt indicates clouds are ending

Question 2ExpertLevel 91

If droplet growth and lower air conditions both matter for precipitation what is the correct conclusion?

APrecipitation is a combined process of many stages and air layersBPrecipitation is decided by only one dropletCLower air has no effectDHeavy rain is certain as soon as cloud forms

Question 3ExpertLevel 92

How can growth of ice crystals in a mixed cloud accelerate precipitation?

AIce crystals can attract vapour grow larger and become fallableBIce crystals turn the cloud into rockCIce crystals destroy all dropletsDIce crystals turn air into dry soil

Question 4ExpertLevel 92

If a cloud has many droplets but most are very tiny why will heavy rainfall not occur immediately?

ABecause tiny droplets quickly become rockBBecause they can remain suspended and have not reached fallable weightCBecause tiny droplets contain no waterDBecause they stop the Sun

Question 5ExpertLevel 92

If air warms on the leeward slope after rain on the windward slope why does cloud formation decrease?

AWarm air can hold more moisture and condensation decreasesBWarm air always remains saturatedCThere is no atmosphere on the leeward slopeDMountain turns cloud into sea

Question 6ExpertLevel 92

Hail growth in cumulonimbus depends on which micro process?

AOnly surface dewBRepeated freezing layers of iceCRiver erosionDOcean salinity

Question 7ExpertLevel 92

Why can rainfall continue for a long time when a broad front is present in cyclonic rainfall?

ABecause broad uplift can persist for a long timeBBecause air completely disappearsCBecause clouds become rocksDBecause water vapour has no importance

Question 8ExpertLevel 92

If falling snowflakes melt in a warm layer below and then reach a cold surface what form is possible at the ground?

AOnly dry dustBFreezing rain or icy surfaceCSurface lavaDCertain river flood

Question 9ExpertLevel 92

If a cloud has enough moisture but very few condensation nuclei why can droplet formation be slow?

ABecause vapour will get fewer tiny surfaces for condensationBBecause moisture will become rockCBecause nuclei always stop precipitationDBecause air will turn into sea

Question 10ExpertLevel 92

If updrafts keep precipitation particles in a cloud for longer what effect can occur on precipitation?

AParticles can grow larger and later give intense precipitationBParticles will lose all waterCThe cloud will become soil belowDPrecipitation will lose relation with cloud

Question 11ExpertLevel 92

Rain and drizzle are both liquid yet why are they separated in weather study?

ABecause drizzle has no waterBBecause droplet size and falling intensity differCBecause rain is solid iceDBecause both are earthquakes

Question 12ExpertLevel 92

If high cirrus clouds are followed gradually by dense layered clouds what can it indicate?

AArrival of a developing weather systemBComplete drying of seaCCertain earthquakeDPermanent end of precipitation

Question 13ExpertLevel 92

Why is a high mountain alone not sufficient for orographic rainfall?

ABecause moist air is also needed for condensationBBecause mountains always destroy airCBecause there is no cooling at heightDBecause rain comes from rock

Question 14ExpertLevel 92

If a cloud has ice above and liquid droplets below what atmospheric structure does it show?

AUniform temperatureBVertical thermal variationCComplete drynessDSea tide

Question 15ExpertLevel 92

If collision and coalescence are weak in a cloud what will be the effect on rain formation?

ADroplet growth will be slow and rainfall may reduceBEvery droplet will become hailCCloud will become rockDPrecipitation will double

Question 16ExpertLevel 92

If a cumulus cloud grows vertically and develops an anvil-like top what does it indicate?

ACumulonimbus and storm potentialBSurface frostCClear stable weatherDOnly cirrus cloud

Question 17ExpertLevel 92

If a cloud is dark but lower air is warm and dry why can surface rainfall decrease?

ABecause lower air can evaporate falling dropsBBecause dark clouds contain no waterCBecause warm dry air always gives heavy rainDBecause drops become soil

Question 18ExpertLevel 92

Why does a cloud band form along a front in cyclonic rainfall?

AMeeting air masses cause uplift and condensationBAir ends at the frontCFront is a rock boundaryDCold air destroys vapour

Question 19ExpertLevel 92

When does hailstorm risk increase if precipitation particles circulate inside a cloud for a long time?

AWhen the cloud has strong updrafts and below-freezing zonesBWhen the cloud is completely dryCWhen there is only surface dewDWhen air does not exist

Question 20ExpertLevel 92

How can the areal extent difference between nimbostratus rain and convectional rain be understood?

ANimbostratus often gives widespread steady rain while convectional rain can be local and intenseBBoth always give only hailCNimbostratus has no waterDConvectional rain is unrelated to mountains so gives no rain

Clouds and precipitation

Quiz this set

If high cirrus is followed by lower dense clouds how can weather change be explained?

If droplet growth and lower air conditions both matter for precipitation what is the correct conclusion?

How can growth of ice crystals in a mixed cloud accelerate precipitation?

If a cloud has many droplets but most are very tiny why will heavy rainfall not occur immediately?

If air warms on the leeward slope after rain on the windward slope why does cloud formation decrease?

Hail growth in cumulonimbus depends on which micro process?

Why can rainfall continue for a long time when a broad front is present in cyclonic rainfall?

If falling snowflakes melt in a warm layer below and then reach a cold surface what form is possible at the ground?

If a cloud has enough moisture but very few condensation nuclei why can droplet formation be slow?

If updrafts keep precipitation particles in a cloud for longer what effect can occur on precipitation?

Rain and drizzle are both liquid yet why are they separated in weather study?

If high cirrus clouds are followed gradually by dense layered clouds what can it indicate?

Why is a high mountain alone not sufficient for orographic rainfall?

If a cloud has ice above and liquid droplets below what atmospheric structure does it show?

If collision and coalescence are weak in a cloud what will be the effect on rain formation?

If a cumulus cloud grows vertically and develops an anvil-like top what does it indicate?

If a cloud is dark but lower air is warm and dry why can surface rainfall decrease?

Why does a cloud band form along a front in cyclonic rainfall?

When does hailstorm risk increase if precipitation particles circulate inside a cloud for a long time?

How can the areal extent difference between nimbostratus rain and convectional rain be understood?

Quiz result

Clouds and precipitation

Quiz this set

If high cirrus is followed by lower dense clouds how can weather change be explained?

If droplet growth and lower air conditions both matter for precipitation what is the correct conclusion?

How can growth of ice crystals in a mixed cloud accelerate precipitation?

If a cloud has many droplets but most are very tiny why will heavy rainfall not occur immediately?

If air warms on the leeward slope after rain on the windward slope why does cloud formation decrease?

Hail growth in cumulonimbus depends on which micro process?

Why can rainfall continue for a long time when a broad front is present in cyclonic rainfall?

If falling snowflakes melt in a warm layer below and then reach a cold surface what form is possible at the ground?

If a cloud has enough moisture but very few condensation nuclei why can droplet formation be slow?

If updrafts keep precipitation particles in a cloud for longer what effect can occur on precipitation?

Rain and drizzle are both liquid yet why are they separated in weather study?

If high cirrus clouds are followed gradually by dense layered clouds what can it indicate?

Why is a high mountain alone not sufficient for orographic rainfall?

If a cloud has ice above and liquid droplets below what atmospheric structure does it show?

If collision and coalescence are weak in a cloud what will be the effect on rain formation?

If a cumulus cloud grows vertically and develops an anvil-like top what does it indicate?

If a cloud is dark but lower air is warm and dry why can surface rainfall decrease?

Why does a cloud band form along a front in cyclonic rainfall?

When does hailstorm risk increase if precipitation particles circulate inside a cloud for a long time?

How can the areal extent difference between nimbostratus rain and convectional rain be understood?

Quiz result

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