2. What effect do you think new, massive structures, especially churches, had on the size and subject matter of artwork commissioned to fill them? )

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

Sorry  i don't understand can you rephrase that