Which of these pieces of evidence did alfred wegener's original theory of continental drift have access to?
reversing paleomagnetism in rocks on the ocean floor
a seafloor that was geologically active with earthquakes, volcanoes, and mountain chains
seafloor spreading at mid-ocean ridges
mountains in north america appearing to match up with mountains in northern europe

C seafloor spreading at mid-ocean ridges

He postulated that all the continents were once joined together in a single landmass and had since drifted apart.
He stated in his book that " the Mid-Atlantic Ridge ... zone in which the floor of the Atlantic, as it keeps spreading, is continuously tearing open..."

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

carbon 14 dating is used to determine the age of the sample by estimating the amount of carbon 14 present in the sample and then comparing it with a reference standard.carbon 14 is a isotope of carbon which is radioactive and unstable. carbon 14 is assimilated by all plants and animals throughout their life from carbon dioxide. however, one the organisms die they stop this assimilation and the carbon 14 content starts to decrease.by knowing how much of carbon 14 is left in an organism after his death, one can estimate the age of the organism. the materials whose age can be estimated by carbon 14 method are the organic compounds. however, some inorganic compounds such as aragonite   shell can also be dated.however, if we consider the igneous rocks it is a non living component which never accumulated carbon 14 in it and thus, we cannot use carbon 14 dating method to estimate its age.

Ig national geographic you can search up all kinds of animals and bugs