A because 60 divided by 20 is 3 so it is going through 3 stages of half life. 40/2=20 which is one half life then 20/2=10 which is the second half life then 10/2=5 which is the 3rd and final half life
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Indigenous peoples, also referred to as first peoples, first nations, aboriginal peoples, native peoples, or autochthonous peoples, are culturally distinct ethnic groups who are native to a place which has been colonised and settled by a later ethnic group
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I don't know bc I don't speak Spanish
High Pacific islands are formed by underwater mountain chains or what is called a mid-ocean ridge or MOR. These underwater mountain chains are formed by tectonic plates and they usually have a valley or what is called as a rift.
