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ad-work [718]
3 years ago
14

Data collected from ice cores ancient sediments in trim rings are all examples of blank or indirect evidence of past climate pat

terns
Biology
1 answer:
otez555 [7]3 years ago
5 0
What are the choices?
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What is the principle for dating materials using radioactive isotopes
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It is based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.

<h3>How are isotopes used in radioactive dating?</h3>

These isotopes decay within the rocks according to their half-life rates, and by choosing the fit minerals and measuring the relative amounts of parent and daughter isotopes in them, the date at which the rock crystallized can be determined.

Thus, It is based on a comparison between the observed abundance of a naturally occurring radioactive isotope.

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2 years ago
Oxygen in the atmosphere is produced by _________________ by green plants.
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pogonyaev
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2 years ago
Help for this question
sveticcg [70]
I remember this from last year haha. The dark moths populations will go down since they can’t blend in as well as the light moths.
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Natural selection is a process by which the characteristics of a(n) __________ will change over time.
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The answer is individual or organism 

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