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What is the largest and most important river system in South America? A. the Amazon B. the Orinoco C. the Rio Grande D. the Rio de la Plata
answered
Dec 6, 2017
Social Studies
high-school
0
votes
74.7k
views
5,268.9284 to the nearest thousand.
answered
Jul 11, 2017
Mathematics
high-school
5
votes
142k
views
Which cells are responsible for attacking, adhering, engulfing, and digesting foreign bodies? PlateletsPhagocytesErythrocytes
answered
Jan 28, 2017
Geography
high-school
4
votes
107k
views
What event marks the end of both the Paleozoic Era and Mesozoic Era? A. The ice age B. The appearance of birds C. A mass extinction of plants and animals D. The breakup of a supercontinent
answered
Jan 13, 2016
Geography
middle-school
6
votes
193k
views
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