soeaaoess by which uranium accumulates in the Earth 4) only possible in a nuclea

Question

soeaaoess by which uranium accumulates in the Earth 4) only possible in a nuclear re 2) the spont elements ecay of one element into another 3) the stable state of all but a few actor 4. Half-life is the time necessary: 1) for all radioactive elements to element 3) for radioactive parents 2) for half of the daughter element to become a parent haif of the parent element to become a daughter element 4) none of the above. or igneous rocks, a radioactive date tells: 1) the time when 2) the melting occurred weathering began. 16. The carbon-1 metarmorphic rokng mo bnlf oan nt1) igneous rocks 2) sedimentary rocks 17. The construction of the Geologic Time Scale was originally based upon: 1 absolute time 2) relative time 3) radiometric dating 4) erosion rates. thae aw of Cross Cutting Relationships states that: 1) intrusions are always older y intrude 2) intrusions are always younger than the rock they intrude the rock the 3) the oldest rocks are on the bottom and the youngest rocks are on t are always radioactive. op 4) intrusive rocks

Explanation / Answer

13) Option 2 is correct.

Radioactive decay is a natural process. An atom of a radioactive isotope will spontaneously decay into another element.

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