Answer: ok ill help:
1. over population happens when too many babies are born and the place gets crowded
2. same thing happens is too many immigrants go to 1 place E.G UK
The molecular clock is a scientific technique which presents a means of estimating evolutionary rates and timescales using genetic data. It uses mutation rate of biomolecules when two or more life forms diverged to estimate the time. Answer is B.
You will some water vapour