During the ice crystal process of rain formation:a
only ice crystals need be present in a cloud.
b. ice crystals grow larger at the expense of the surrounding liquid cloud droplets.
c. the temperature in the cloud must be -40o C (-40o F) or below.
d. the cloud must be a cumuliform cloud.
b
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Which is not true about cars of the future?
A) Today, more full electric cars are sold than hybrids. B) Hydrogen fuel cell cars are being used in a handful of large East and West Coast cities. C) Diesel engines burn fuel more efficiently than conventional gas engines. D) Ethanol is a fuel made by distilling crops. E) The DOE forecast that by 2020, around 50% of all sold cars in the U.S. will be alternative to the conventional gas engine.
In Australia, the summer solstice occurs a few days before Christmas (December 25)
Indicate whether the statement is true or false
How much water would cover the globe if all the water vapour in the atmosphere condensed and fell to the ground?
A. about 100 centimetres B. about 1 metre C. about 2.5 centimetres D. about 1 millimetre
Beach property owners want to protect their beaches by building groins, seawalls, jetties, and other features. The problem with these measures is: a. they are not expensive to maintain
b. they often cause problems for other people. c. they are not expensive to build. d. they are easily eroded away.