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azamat
3 years ago
13

Example of rapid environmental change and extinction

Biology
1 answer:
seraphim [82]3 years ago
3 0

Answer:

How the dinosaurs went extinct.

Explanation:

A meteor fell to earth and killed them all.

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It's B.

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I took the thing to. Mrs. A's class?

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Which of the following represents a weakness of the biopsychosocial model?
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If a treatment suddenly lowered your serotonin level ___
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3 years ago
If a sample originally had 120 Adams of carbon 14 how many atoms will remain after 17,190 years
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Answer:

15 atoms

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About 15 atoms out of the 120 Adams would remain.

<em>Generally, the half-life of a substance is the time it takes for one-half of that substance to disintegrate.</em>

Carbon 14 has a half-life of approximately 5,730 years. 17,190 years means that the sample had stayed for 17,190/5,730 which is equal to 3 carbon-14 half-lives.

Out of 120 Adams,

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  • <em>the second half-life will reduce 60 Adams to 30 Adams</em>
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<em>Hence, at the end of the 17,190 years, approximately </em><em>15 Adams</em><em> would remain.</em>

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3 years ago
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