How does radiation differ from convection? (104 points)
a Radiation can move through empty space to transfer heat; convection cannot.
b Radiation needs a medium in order for heat to transfer; convection does not.
c Radiation requires objects to have direct physical contact; convection does not.
d Radiation transmits heat by circulating particles in an object; convection does not.
Answer:
Choice A
Radiation can move through empty space to transfer heat; convection cannot.