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Rufina [12.5K]
3 years ago
14

What pattern did you see repeated every year?

Biology
1 answer:
Dafna11 [192]3 years ago
7 0
In general or do you have a chart?
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13)
Julli [10]

Multiply 5730 years by 2 since two half-lives have gone by for carbon.

<u>Explanation</u>:

The half-life of a radioactive isotope depicts the measure of time that it takes half of the isotope in an example decay. On account of radiocarbon dating, the half-existence of carbon 14 is 5,730 years  

The half-life of carbon-14 is 5730 years.  

In this manner, after  

1 half-life there is 50 % = 1/2 of the first amount left.  

2 half-lives there is 25 % = 1/4 of the first amount left.  

25% is two half-lives.  

Every 50% of life requires 5730 years.  

So two half-lives require 2 × 5730

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Rina8888 [55]
The <span>myocardium (the middle layer)</span>
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- Monarch butterflies migrate from the U.S. and
kiruha [24]

Answer:4

Explanation:

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Which of the following would NOT be illegal under the Endangered Species Act?
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Probably d as the answer
3 0
3 years ago
Was perestroika successful?
allsm [11]

Answer:

Nope, it dissolved before reaching the final stages.

<em>I hope that helps :D</em>

6 0
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