Radar because the waves are reflected back off of the source so with the reflection it's hard for them to see earth surface.
I think the answer is
B) All of these are corrects
He was a roman emperor, from Dalmatia and he invented a new way to reign: the "tetrarchie" in french. It means 3 people ruling together to avoid one having too much power. He basically reformed the overall look of The Roman Empire.
1) Through fertilization of an egg.
2) .5
3) Their body ages faster then ours.
4) They're made of love. (Also known as organs, water, basically what we are made of like any mammal.)
Rosa belongs in the region Murcia which is locate in Spain