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Sholpan [36]
3 years ago
13

Can someone please help me with this question I’m not sure if it’s correct I need help I’ll give brainliest

Geography
1 answer:
KengaRu [80]3 years ago
8 0

Answer:

4,500 million years is the half-life of U-238.

Explanation:

A is correct because as we can see from the graph, U-238 has lost about half of its mass over the course of 4,500 million years, thus that is its half-life.

B is not correct because by 9,000 the U-238 has only kept about 28% of its original mass.

C is not correct because in 4,500 years the U-238 is barely changed, and it still has almost all of its initial mass.

D is not correct because in 50 million years the U-238 has only lost slightly more than 1% of its initial mass.

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