Answer:
0.5 m/s
Explanation:
V = m / t = 2 / 4 = 0.5 m/s
The question is asking to choose among the following choices that describes about the Big Bang theories, base on my research and further investigation, I would say that the answer would be letter B. <span>The universe is expanding. I hope you are satisfied with my answer and feel free to ask for more </span>
the main human activity is air pollution
