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 ___ dating uses radioactive elements to _____ matter such as rocks and ___. As the radioactive elements _____, they turn into other elements. Scientist then use the ratio of the two elements to determine how old something is.

a. fossils
b. know
c. chemical
d. disintegrate
e. integrate
f. radioactive
g. date

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Answer:

Radioactive dating uses radioactive elements to date matter such as rocks and fossils. As the radioactive elements disintegrate, they turn into other elements. Scientist then use the ratio of the two elements to determine how old something is.

Explanation:

Answers:

radioactive - date - fossils - disintegrate

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