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Delicious77 [7]
3 years ago
15

A fossil bone has 25% of this new radioactive element remaining. If the half-life of this new element is 10,000 years, how old i

s the fossil bone?
Biology
1 answer:
natali 33 [55]3 years ago
4 0
The element starts off as 100%. half of 100% is 50% and half of 50% is 25%. the element has emitted 2 times the half life which is 10,000 x 2 = 20,000

the fossil bone is 20,000 years old
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because the total time for restoration is lengthy, peat can be considered a fossil fuel. The correct option is B.

<h3>What exactly are fossil fuels?</h3>

Fossil fuels are fuels derived from the remains of dead plants and animals that decomposed over time under intense heat and pressure.

Because their replenishment time is longer than a human lifetime, fossil fuels are non-renewable energy sources.

Some examples of fossil fuels are petroleum, coal, etc.

The missing options of the question are:

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  2. peat is a fossil fuel because the total time for restoration is lengthy.
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The restoration process of peat takes a long time of more than 100 years. As a result, because the total time for restoration is lengthy, peat can be considered a fossil fuel.

Thus, the correct option is B.

For more details regarding fossil fuels, visit:

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