The two main distinguishing characteristics of an air
mass are
a) size and shape.
b) pressure and wind speed.
c) cyclonic rotation and speed of movement.
d) temperature and moisture content
d
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Which of the following is not a thermoplastic polymer?
(a) Polyethylene (b) Epoxy (c) Polyvinylchloride (d) Polypropylene
Specific Heat: A thermally isolated system is made up of a hot piece of aluminum and a cold piece of copper, with the aluminum and the copper in thermal contact. The specific heat capacity of aluminum is more than double that of copper. Which object experiences the greater temperature change during the time the system takes to reach thermal equilibrium?
A. the copper B. the aluminum C. Neither one; both of them experience the same size temperature change. D. It is impossible to tell without knowing the masses. E. It is impossible to tell without knowing the volumes.
In the geology, the term "Precambrian" refers to
A) the eon immediately preceding the Phanerozoic eon B) all eons preceding the Phanerozoic eon C) the eon immediately preceding the Proterozoic eon D) all eons preceding the Proterozoic eon
as a star becomes a giant, its outer layers are expanding. where does the energy for expanding these layers come from?
What will be an ideal response?