In order for a theory to be considered valid it must be: observed at least one time recorded repeatable inferred from personal interpretation

This is a true statement

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

Idk little ngr try paying attention in school and you would know ngr