What must happen to uranium before it can be used as a fuel source?
A. Stable U-235 must be enriched with 3% radioactive U-238.
B. Stable U-238 must be enriched with 3% radioactive U-235.
C. No changes are necessary.
D. Unstable U-235 must be enriched with 5% U-238 to stabilize it.

Part of molten rock at mid-ocean ridges

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?