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Musya8 [376]
3 years ago
7

BRAINLIEST AND 100 POINTS FIRST ANSWER GETS BRAINLIEST!!!

Biology
2 answers:
nexus9112 [7]3 years ago
7 0

Answer:

Half-Life is the time for a substance (U-235 in this case) to decay to 1/2 its original mass.

Since the problem is asking for the time for U-235 to decay to 1/2 its original mass (100 grams to 50 grams) then the decay time is 1 half-life, or 700 million years.

hope it helps u kindly mark as brainliest...

horrorfan [7]3 years ago
6 0

Answer:

A stone artifact that formed 700 million years ago

Explanation:

By the details it is said that Uranium-235 was 700 million years old, so it would make sense for it to be stone since it is stone like.

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Hello!
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The answer to your question is gene/s.
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