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13-01-2021
Biology

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A rock sample has 25% of its original radioactive element and the half-life of the
element is 1 million years. How old is the sample?
A.)2 Million Years
B.)0 1 Million Years
C.)500.000
D.)50,000

Respuesta :

mohamedalnhari76 mohamedalnhari76

13-01-2021

Answer:

c 500000

Explanation:

the half was 1000000 so it's 2000000 and 25% of that is 500000

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