C no because many species went extinct without leaving fossils behind
<span>I think the answer woulb be option B). S</span><span>olenoid wrapped around an iron core, wires, a light bulb</span>
I answered the question before but ill try to explain more. You know after 5 seconds they are going 60km/h, if you want to know how many km/h they are going per second (that would be their acceleration) you would take how fast he is going after those 5 seconds (60km/h) and divide it by how many seconds it takes him to get to that speed (5sec) and your answer would be how many km/h they can get to in one second (their acceleration).
