troposphere, troposphere is where all the weather comes from
The dyes <span>changes</span> color because a chemical reaction has takes
place in the medium. When universal
indicator is added to a solution, the color changes which indicate the
approximate pH of the solution. It also means that there is a change in
the concentrations of an acid and a base.
Answer:
The DNA must be copied so there is a full set of DNA to pass on to each daughter cell.
