Cockapoo. Height:10-15 inchesWeight:6-20 poundsLifespan:10-12 yearsGroup:Not ApplicableBest suited for:Families with children, singles and seniors, apartments, houses with/without yardsTemperament:Sweet, loving, playful, affectionateComparable Breed:Cocker Spaniel, Poodle.
The theory of continental drift was not accepted for many years. One problem was that a plausible driving force was missing. A second problem was that Wegener's estimate of the velocity of continental motion, 250 cm/year, was implausibly high.(The currently accepted rate for the separation of the Americas from Europe and Africa is about 2.5 cm/year). And it did not help that Wegener was not a geologist.s late as 1953 â just five years before Carey introduced the theory of plate tectonics â the theory of continental drift was rejected by the physicist Scheidegger on the following grounds.
All of these facts supported Wegener's theory of continental drift.. In 1915 the first edition of The Origin of Continents and Oceans, a book outlining Wegener's theory, was published; expanded editions were published in 1920, 1922, and 1929. About 300 million years ago, claimed Wegener, the continents had formed a single mass, called Pangaea (from the Greek for all the Earth).