In your own words, describe the law of universal gravitation. Who discovered this important concept?
What will be an ideal response?
Every object in the universe attracts other objects. The force that attract objects together increases as the size of the objects increases and decreases as the distance between them increases. Sir Isaac Newton discovered this concept.
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What is causing ozone thinning over Antarctica?
A. CFCs B. PCBs C. DDT D. CPLs
Which country is located in the greater antilles
a. Cuba b. Nicaragua c. Bahamas d. Mexico
By the 15th century, emerging regions of capitalism in the developing world-system included all except
A) NE coastal North America. B) Nile Valley. C) Baltic Sea region. D) SE coastal China. E) Bengal region.
Which is an example of the geopolitical reach of the United States beyond the bounds of North America?
A) Afghanistan B) the Philippines, Iraq, Afghanistan C) Iraq D) the Philippines E) New Zealand