This is middle school Science just letting you know pls help An object floating on a wave in the ocean will
O be pulled out toward sea as the waves come in
O none of the above
O remain in approximately the same place
move toward shore

It is the doctrine that the us had the right and duty to expand throughout north america. it just means they believed they had the right to expand westward and they did! they stated with the 13 colonies and then they kept moving gaining different territories throughout the years

Answer// dinosaurs emerged during mesozoic era;