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kompoz [17]
3 years ago
8

The army cutworm moth is a critical source of fat for many of yellowstone national park's grizzly bears; they overturnrocks to f

ind them and consuming as many as 40,000 apiece in a single day.
Biology
1 answer:
Effectus [21]3 years ago
4 0
Bears, which overturn rocks to find the insects, consuming
as many as.
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5 0
2 years ago
if an element has a half-life of 30 million years and there is 12.5% of it remaining in a rock, how old is that rock
Assoli18 [71]

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The half-life of a substance is the amount of time it takes for half of that substance to decay. However, after two half-lives, half of the half remaining will decay, leaving you with one quarter of the original substance.

So, after 1 million years you will have 50% of the original substance remaining.

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