From the brightness of the light of course. If the brightness is increasing it means the the light source is approaching and if the brightness is decreasing it means the light source is leaving.
Answer:I think it is A DNA molecule 5
sorry if I am wrong
Answer:
Can you add the answers please and thank you but i say b
Explanation:
C <span>Antibiotics could cure chicken pox sooner than 7 days, since it is a virus</span>
