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Absolute dating can be determined by (Select all that apply). A. Tree ring patterns B. Earth's magnetic field C. A historian's journal D. Coral growth cycle radioactivity E. Photo comparison
answered
Mar 24, 2017
Biology
high-school
0
votes
229k
views
Equation: CaH2 + 2H2O ---> Ca(OH)2 + 2H2. . How many grams of calcium hydride are needed to form 4.500 g of hydrogen?
answered
Jan 14, 2017
Chemistry
high-school
7
votes
226k
views
A die is rolled, find the probability that an even number is obtained.
answered
Dec 27, 2016
Mathematics
middle-school
4
votes
205k
views
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