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The correct answer is - Seafloor spreading at the mid-ocean ridge provides the mechanism for tectonic plate movement.
Harry Hess is one of the people that is most important when it comes to the proving and world wide acceptance of the continental drift theory.
Hess was very interested in the topic, and he was constantly looking for clues that would bring light to it and finally have a definite proof of it. While sailing through the Atlantic and doing some examinations, Hess noticed that there high mountains in the water, having flat peaks, and being arranged in an interesting manner. These underwater mountains, named guyouts, were the highest at a certain point, and than on both sides, as the distance was increasing they were becoming smaller and smaller.
What Hess stumbled upon was the seafloor spreading and how it works, and he recognized that quickly. He immediately went on to share what he discovered, that there's magma coming from bellow, solidifying and spreading, thus creating new crust while pushing the old crust away from the center, which is the reason why the continents are moving.
Yes they are now able to affect more cultural change. Before the women’s rights movement, women did not have much of a voice at all. Men did all the talking. Women were expected to be submissive to their husbands and be a caretaker for their husbands and children. Since the women’s rights movement, women are now able to express themselves freely. This is something they might not have gotten to do before. They are now able to choose any career they want and are encouraged to make their own choices and voice their opinions freely.
