Which process could be indicated by
the expression below?
U238 →Pb206
(1) crystallization of minerals in basalt
(2) chemical weathering of marble
(3) radioactive decay in granite
(4) ozone depletion in the atmosphere
10



Answer :

Final answer:

The expression U238 →Pb206 indicates radioactive decay in granite, used in radioactive dating.


Explanation:

The expression U238 →Pb206 indicates radioactive decay in granite. This process is used in radioactive dating to estimate the age of materials, including rocks, by measuring the ratio of uranium and lead isotopes in them over time.


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