Explain how clouds can be seeded naturally
What will be an ideal response?
ANSWER: Under certain conditions, clouds may be seeded naturally. For example, when cirriform clouds lie directly above a lower cloud deck, ice crystals may descend from the higher cloud and seed the cloud below. As the ice crystals mix into the lower cloud, supercooled droplets are converted to ice crystals, and the precipitation process is enhanced. Sometimes the ice crystals in the lower cloud may settle out, leaving a clear area or "hole" in the cloud. When the cirrus clouds form waves downwind from a mountain chain, bands of precipitation often form—producing heavy precipitation in some areas and practically no precipitation in others.
You might also like to view...
In many areas where natural gas lines are not available, homes are heated during the winter months by furnaces that burn propane. Calculate the amount of CO2 released into the atmosphere by 100,000 homes if each house consumes on average 600 gallons of propane during this period.
What will be an ideal response?
Figure 23.16
Summarize the free-market economic system.Â
What will be an ideal response?
The first sign of hypothermia is ____
a. stupor b. dehydration c. exhaustion d. collapse e. frostbite
Diurnal temperature ranges are small in tundra climates
a. True b. False Indicate whether the statement is true or false