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Answers by Hjl

Answers by Hjl
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Which model of the atom first introduced the idea of a nucleus? A. Thomson's model. B. Bohr's model. C. Rutherford's model. D. Dalton's model.
answered Oct 15, 2017
4 votes
82.4k views
Was the first person to propose the idea of moving continents as a scientific hypothesis. A. Alfred Wegener B. Charles Richter C. Antonio Snider-Pelligrini D. Abraham Ortelius
answered Mar 27, 2017
1 vote
77.1k views
The United States gave much attention to environmental issues in the 1980s and 1990s. Preservation efforts have included: care of endangered species maintenance of lands and parks purification of the air
answered Mar 5, 2017
3 votes
195k views
What body of water surrounds greece on 3 sides
answered Feb 11, 2017
5 votes
158k views
Explain why fluids travel faster near the center of pipes and tubes than at the edges
answered Jan 21, 2016
4 votes
233k views
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