What phenomena does the continental drift and the tectonic plate theories both try to explain? how chains of islands were formed by volcanic hotspots

how smaller continents finally disappeared

how volcanism formed land masses and ocean floors

how supercontinents in geologic history broke up and formed smaller continents

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

What causes most sediment to wash or fall into a river