Kepler’s third law of motion states that the square of a planets orbital period is proportional to which of the following? the cube of the planet’s density
the cube of the planet’s temperature
the cube of the planets size
the cube of the planets average distance away from the sun

radiative zone

explanation    

radiative zone is the layer of the sun which energy is transferred away from the core by radiation. although, the core is the only part of the sun that produces an appreciable amount of heat through fusion. in fact, 99% of the energy produced by the sun takes place within 24% of the sun's radius.

answer biscay bay;