Which of these statements is true about the theory of plate tectonics and the theory of continental drift ? a. the theory of plate tectonics explains how continental movement could occur b. theory of plate tectonics shows that continental movements could not have happened c. the theory of plate tectonics told exactly what the continents were before pangea divided d. plate of tectonics shows that pangea was impossible but the continents did move

A. the theory of plate tectonics explains how Continental movement could occur.

Plate tectonics is the scientific theory proposed by scientist Alfred Wegener in 1960. This theory substantiate the fact that the a large landmass got splitted and drifted into continents which were drifted to different locations from the site they were originated. The theory provides the reason for continental drift. It explains the fact that plates (continents) above the earth surface gets split into different subplates (small continents) because of natural effects like volcanoes, mountain formation, earthquakes.  

the answer to your question is:

c. complementary base-pairing

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides