Physics
Middle latitude cyclones are fueled by?

Air high in the atmosphere
All of these
Polar continental air masses
Energy from falling precipitation

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Physics
Which of the following options correctly explains the term heat budget?

It is the balance between incoming and outgoing radiation
It is the amount of heat which the surface of earth receives from the sun.
It is the radiation from the earth in the form of long waves.
It is a mode of transfer of heat through matter by molecular activity.

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