The History of the Atom 5: The Modern Theory investigates the development of modern atomic theory. Greek philosophers Leucippus and Democritus first developed the concept of the atom in the 5th century B.C.E.
Therefore, based on the concepts of the continental drift and other developing ideas at the time, a general theory was developed, which is now known as the plate tectonics. Plate Tectonics. Plate tectonics is the theory explaining the motion of the outer crust or the lithosphere of earth. Lithosphere is divided into tectonics plates. Two main types of tectonics plates are the oceanic crust and continental crust. Oceanic crust is mainly composed of Silicon and magnesium, hence called SIMA.
Continental Drift is the theory describing the movement of the continents that is result of plates in the Earthâs crust that move.The movement of these plates is known as plate tectonics. Tweet. About The Author Matt Slick is the President and Founder of the Christian Apologetics and Research Ministry.ontinental Drift is the theory describing the movement of the continents that is result of plates in the Earthâs crust that move.