20 pointsmy brother jack found a piece of oak while hiking in an arizonan canyon. my brother jason was taking a geology class and he thought it might be from ancient times so they ran some experiments and found that the amount of carbon-14 (14c) was approximately 1/64 of the current atmospheric 14c levels. determine approximately how many years ago the tree was chopped down to be used for the firewood. 14c has a t1/2 of 5,750 years use the half life equation
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Chemistry, 22.06.2019 07:00
6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space
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Chemistry, 23.06.2019 02:30
Which of the four hypothetical substances you investigated would be most harmful to living organisms? 50 points!
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20 pointsmy brother jack found a piece of oak while hiking in an arizonan canyon. my brother jason w...
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