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The first law of thermodynamics states that energy can't be created or destroyed. If people can't create energy, where do we get energy to do work? Options: the Sun and moon, food and fossil fuels, our
answered
Mar 31, 2018
Biology
high-school
2
votes
7.3k
views
23) How were the battles of Gettysburg and Vicksburg turning points in the war?
answered
Feb 22, 2018
History
high-school
4
votes
94.4k
views
Eutrophication can lead to decreased dissolved oxygen in a body of water. This often results in __________. A. the deaths of all plant and marine life in the area B. an increase in water pollution in the
answered
Jan 27, 2018
Geography
high-school
3
votes
231k
views
What digit is in the thousandths place in the decimal 5765.903
answered
Dec 23, 2017
Mathematics
middle-school
2
votes
210k
views
Why was friedrich von Hayek against government intervention in an economy?
answered
Jul 3, 2017
History
high-school
2
votes
205k
views
If a right circular cone intersects a plane that passes through one of its nappes but the plane is not parallel to an edge of the cone the resulting curve will be: parabola circle ellipse hyperbola
answered
Mar 1, 2017
Mathematics
high-school
5
votes
80.9k
views
Which atoms are more stable in the combined form?
answered
Feb 7, 2017
Chemistry
middle-school
2
votes
171k
views
Why was it called the spanish flu ?
answered
Jan 23, 2017
History
high-school
2
votes
17.5k
views
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