What the climate in the Anacostia watershed been like over the past few 12,500 years?

Are these strong bases, neutral, strong acids, weak acids or weak base household bleach (ph=12.6) fluid in a car's battery (ph of less than 1.0) milk (ph=6.7) stomach contents (ph=2.2) pure water (ph=7)

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun

Which are reasons cells undergo cell division?