Answer:
D. The magma is heated and becomes less dense by the core moving it toward the crust.
Explanation:
Closer to the core of the earth is much hotter than near the crust so as the Lava heats up its particles move faster and father apart making it less dense, as the Lava from near the crust cools down it begins to get dense and sinks as the hot magma starts to move up.
By building dams and levees . Hope this helps
A). If the half-life is 40 days, then 5 half-lives = (5 x 40) days.
b). If 5 half-lives have passed, then the radioactive portion of
the sample has been cut in half five times.
The amount that remains is (1/2)⁵ of the original amount.
That's (the original amount) x (1/2 · 1/2 · 1/2 · 1/2 · 1/2)
or
(the original amount) / 2⁵
or
(the original amount) / 32 .
African American, Native American, and asian