Which of the following expression is polynomial?
a)5z-9
b)7/x-6
c)root y+ycube +6
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Step-by-step explanation:
Convection is the transfer of heat due to the bulk movement of molecules within fluids, including molten rock. Convection includes sub-mechanisms of advection, and diffusion. Convection cannot take place in most solids because neither bulk current flows nor significant diffusion of matter can take place.
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