They check there answers using history, like they use primary sources etc.
Wheres the wrest of the question?
Copernicus<span> contributed the heliocentric model of the universe, </span>Brahe<span> contributed astronomical data, </span>Kepler<span> contributed elliptical orbits of planets, </span>Galileo<span> contributed his telescopic discoveries, and </span>Newton<span> contributed his laws of gravitation.
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https://quizlet.com/8423267/chapter-14-17-flash-cards/
Answer:
beach erosion, flooding, storm surges
Explanation:
