Which statement explains what geologists can learn from the graph?
a. they can estimate that all the potassium will have decayed within 6.5 billion years.
b. they can tell that 1/8 of the argon gas will be left after 3.9 billion years.
c. they can determine that a rock is 1.3 billion years old if 1/2 of the potassium has decayed.
d. they can see that potassium’s half-life varies from every 1.3 billion years to every 5.2 billion years.

a adaptation is when organism changes itself to fit the environment

ex. when its cold outside i wear a jacket

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the median of the data is 4.5.

i was thinking 4.0 v hope this

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ι нσρє тнαт ι ¢συℓ∂ нєℓρ уσυ.