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1858 geologist eduard seuss points out that fossils of the glossoptirs plant are found on south Africa, Australia,Antarctica,and India.
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wegner observes that a South African mountain rang in Argintina lines up with an ancient African mountain rang in South Africa when the two continents are placed together.
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1965 geologist Edward Bullard uses computers to match coasts of Souh America and Africa. They match extremely well at ocean depth of 1,000 meters.
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1980s satellites and lasers are used to measurethe movement of continents.They continue to move at an average of about 2cm (0.8in) per year.
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