The correct answer is option B.
Edmond Halley correctly predicted the return of the eponymous comet Halley after he realized several sightings of a comet were in fact the same comet.
By correctly understanding Sir Isaac Newton's law of gravity and also his ideas in mathematics, Halley was able to correctly predict that the comet that now bears his name would return periodically. He did this by discovering Halley's orbit in 1716 and thus being able to predict the year of its return.
Hwrbet Hoover was the president at the start and was followed.by Franklin D. Roosevelt
Afghanistan, when looked at a map, can be found at <em><u>1</u></em><em><u /></em>, next to Pakistan (4) and Iran (3) and below Uzbekistan (2).
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Answer:Ulysses S. Grant
Explanation:
Before he became president, Grant led the Union Army as Commanding General of the United States Army in winning the American Civil War.