Marie Tharp and Bruce Heezen's work primarily contributed to the understanding of the ocean floor, which was crucial in the development of the theory of plate tectonics. Specifically, they showed what the oceans’ floors looked like, helping explain how continents move over time. Their mapping of the mid-ocean ridges and ocean basins provided evidence for the process of seafloor spreading, which was a key component in the acceptance of plate tectonics as a scientific theory.
How did new evidence found by Marie Tharp and Bruce Heezen add onto continental drift and create the theory of plate tectonics? (1 point) Responses They proposed that mountain ranges at the edge of continents helped explain how continents used to fit together. They proposed that mountain ranges at the edge of continents helped explain how continents used to fit together. They showed what the oceans’ floors looked like helped explain how continents move over time. They showed what the oceans’ floors looked like helped explain how continents move over time. They showed fossils of the same organism on multiple continents helped explain how continents float on the mantle. They showed fossils of the same organism on multiple continents helped explain how continents float on the mantle. They proposed that continents are pieces of the Earth's crust floating on top of the mantle.
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