Another parent-daughter pair is measured in the felsic ash. This pair has a half-life of 25 million years. There is (1/16) 6.25% of the parent remaining. How old is the felsic ash? (You can use the bottom table in the Isotope Decay handout to decide how many half-lives have passed if there is only 6.25% of the parent remaining.)

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scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's

yes it is   dangerous

explanation:

because that foot is discusting and could get you sick