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_______ was the first person to propose the idea of moving continents as a scientific hypothesis. A. Antonio Snider-Pelligrini B. Alfred Wegener C. Charles Richter D. Abraham Ortelius
Weegy: D. Abraham Ortelius was the first person to propose the idea of moving continents as a scientific hypothesis. (More)
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Asked 301 days ago|6/20/2013 10:05:02 AM
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All the processes that form mountain ranges are known as A. island arcing. B. compressive forces. C. arch vibrations. D. orogeny.
Weegy: All the processes that form mountain ranges are known as D. OROGENY. (More)
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Asked 301 days ago|6/20/2013 9:57:52 AM
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The process in which the floors of a building collapse on one another is known as A. a landslide. B. pancaking. C. earthquake panic. D. earthquake shakedown.
Weegy: The process in which the floors of a building collapse on one another is known as B) pancaking. (More)
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Asked 301 days ago|6/20/2013 10:15:20 AM
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Which variable stars have pulsation periods between 1.5 hours and 1.2 days? A. Protostars B. RR Lyrae variables C. Nebulas D. Cepheid variables
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Updated 176 days ago|10/23/2013 1:37:09 PM
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The stars that have pulsation periods between 1.5 hours and 1.2 days are C. RR Lyrae variables

"Their period is shorter, typically less than one day, sometimes ranging down to seven hours."


The others :
A. Cepheid variables - have periods of many days
B. Protostars - are variable in the T-Tauri stage, but they are very hard to observe for most observers and period is longer
D. Nebulas - a nebula is not a star
Added 176 days ago|10/23/2013 1:37:09 PM
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