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Answers by Dkar

Answers by Dkar
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Carbon dioxide in the atmosphere traps heat. Scientists are concerned that too much carbon dioxide is being released into the air by human activity. Using your knowledge of the carbon cycle, where do you
answered Dec 27, 2017
3 votes
218k views
1.What is dendrochronology? A. analysis of pollen B. analysis of tree rings C. analysis of ice cores D. analysis of fossils 2.Which of the following statements about the greenhouse effect is true? A. Life
answered Dec 21, 2017
6 votes
233k views
A group of words that has a subject and predicate that can stand alone as a sentence is called _____.
answered Dec 12, 2017
2 votes
41.8k views
What's the exponential form for 1,000 times 1,000
answered Jun 11, 2017
0 votes
161k views
How many hair follicles does a human have?
answered Oct 15, 2016
3 votes
214k views
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