The answer is D: Half life is the time required for help of a radioactive element to decay.
If you look at the years of the states and write down the ones in 1889 and 1900, it gets easier. Three that I got were Wshington, Montana, and South Dakota (I'm sure there are more but those were three).
Because everyone receives fair amount
The answer is: Parts that are all slightly different.
Hey just took the 3.12 quiz the answer is C. Humid Subtrupical.