Answer:

Explanation:
Given that


Emissivity of surfaces(∈) = 1
We know that heat transfer between two surfaces due to radiation ,when both surfaces are black bodies

So now by putting the values



So rate of heat transfer per unit area

<span>Both
planets, Mars and the Earth are terrestrial planets. This means that their
surface is rocky, they have Mountains, canyons, valleys, ice caps..</span>
<h2><u><em>Nuclear reactions are processes in which the nucleus of an atom is changed.</em></u></h2>