Which substance acts as a buffer in natural water?

a) minerals and salt
b) distilled water
c) sulfuric acid
d) a ph indicator

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the

Idont see a question here

Yes yes yes very good