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Thermal: Quiz


Question 1: Thermals on the ________ typically form hexagonal prisms (BĂ©nard cells).
Solar SystemEarthStarSun

Question 2: When a steady wind is present thermals and their respective cumulus clouds can align in rows oriented with wind direction, sometimes refered to as "cloud streets" by soaring and ________ pilots.
Powered hang gliderFixed-wing aircraftGlider (sailplane)Hang gliding

Question 3: A thermal column (or thermal) is a column of rising ________ in the lower altitudes of the Earth's atmosphere.
Natural environmentAtmosphere of EarthNatureHistory of the Earth

Question 4: Thermals are often indicated by the presence of visible cumulus ________ at the apex of the thermal.
Cloud condensation nucleiCloudFogPrecipitation (meteorology)

Question 5: Thermals are created by the uneven heating of the Earth's surface from solar radiation, and an example of ________.

Question 6: Cumulus clouds are formed by the rising air in a thermal as it cools and ascends, until the ________ in the air begins to condense into visible droplets.
HumidityWater vaporLightningTemperature


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