C. Space.
Radiation is a process by which heat energy is transferred through space.
<span>After a new moon the sunlit portion is increasing, but less than half, so it is waxing crescent. </span>
Are there options, because I believe the answer is D.
Answer:
Motion - zero displacement. A tram leaves the depot, travels along its route and returns back to the depot. The tram has covered a total of 80km but its displacement is 0km since it ends up where it started. A cart moves along a straight track for 50m.