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9. Approximately how old is a fossil with 12g of 14C if it initially possessed 32g...
A fossil is found to have a 14C level of 77.0% compared to living organisms. How old is the fossil? Number years Next D Check Answer KD Previous e dive Up & Vilew Solution 9 Hint
A fossil is found to have a 14C level of 71.0% compared to living organisms. How old is the fossil?
The current mass of the atmosphere is approximately 5.3×1018 kg. How much fossil fuel, expressed as kilograms of carbon (C), must have been burned to raise the CO2 concentration of the atmosphere from 210 ppmv to 330 ppmv? The bulk density of carbon is 2267 kg/m³. What is the volume in cubic kilometres of this much carbon?
A fossil is found to have a 14^C level of 89.0% compared to living organisms. How old is the fossil?
Dinosaur fossils are too old to be reliably dated using carbon-14, which has a half-life of about 5730 years. Suppose we had a 66 million year old dinosaur fossit. How much of the living dinosaur's 14c would be remaining today? (Round your agswer to flve decimal places.) % Suppose the minimum detectable amount is O.7 %. What is the maximum age of a fossil that we could date using 14c7 (Round your answer to the nearest integer) Need Help? Read...
Radiocarbon dating techniques are used to determine that a very old piece of bone emits emits about 29 B-particles per sec. If a similarly-sized sample of modern bone emits about 928 B-particles per sec, and the half-life of 14C is 5730 years, approximately how old is this bone fragment (in years)? Submit Answer Tries 0/99
The half-life of carbon-14 is roughly 5,700 years. In the pre-industrial atmosphere, there was approximately one atom of carbon-14 for every trillion atoms of carbon-12. In a fossil that is 17,100 years old, how many atoms of carbon-12 would there be for every atom of carbon-14? Approximately Select one: a. three trillion b. one trillion c. four trillion d. eight trillion e. two trillion
The half-life of carbon-14 is roughly 5,700 years. In the pre-industrial atmosphere, there was approximately one atom of carbon-14 for every trillion atoms of carbon-12. In a fossil that is 17,100 years old, how many atoms of carbon-12 would there be for every atom of carbon-14? Approximately Select one: a. three trillion b. four trillion c. eight trillion d. two trillion e. one trillion
I dont know how 0.032mol
ronmental effects of these practices. If approximately 0.4 % of the carbon emitted from a gasoline internal combus- tion engine is CO rather than CO,, how many liters of gasoline would need to be burned to reach a lethal level of CO in a cubic volume 100 m on a side? Note: The density of air is 1.204 kg/m 4,7 4.8 Suppose 103 kg per vear of CO. emiued Step 1 Write the combustion equation...
what was darwin first big idea? How does fossil
evidence support this idea
7. Darwin first developed his Theory of Evolution in 1839, but did not publish his theory until 1859. Why did he wait so long to publish his book? What stimulated him to finally publish? ՍՍՍՍՍՍՍՍՍՍՍՍՍնն 8. What was Darwin's first "Big Idea? How does fossil evidence support this idea? 9. What was Darwin's second "Big Idea"? How does the presence of two color forms in the rock...