Answer:
three half-lives
Explanation:
Converting 12.5% to decimal gives 0.125
If one half life is 0.5.
0.5*0.5*0.5 gives 0.125
Thus 3-half lives has been elapsed
Hello there. :)
<span>The set of countries with the greatest population densities are
</span><span>Germany, Italy, England</span>
By observing how seismic waves are absorbed and refracted, scientist have been able to work out where the properties of the earth change dramatically. our understanding of the internal structures of the earth and the size of its core is based on these observations.
basically:
size of core
structure of the earth I.e. the layers of the earth
and I think the last one is how the internal structure is changing? not sure on the last one but its still a solid guess.
<span>The Ogallala aquifer (a part of the High Plains aquifer) is one of the most important areas for getting water in the central and western parts of Kansas. This would be the most likely region in which a cattle rancher would live if they're getting their water from this aquifer.</span>
