Black holes themselves can not be seen, nor do they leave trails (since emptiness does not have to be caused by a black hole), but there is evidence for black holes: scientists can see the effects of their gravity on nearby stars. The answer is B.
The Cenozoic spans only about 65 million years, The Cenozoic is sometimes called the Age of Mammals, because the largest land animals have been mammals during that time.
I think all your answers is correct.
Believe in your work.
Pregunta: A qué se le llamó cisma de oriente?
Responder: 16 de julio de 1054 d.C .: Gran Cisma
El 16 de julio de 1054, el Patriarca de Constantinopla, Miguel Cerularius, fue excomulgado de la iglesia cristiana con sede en Roma, Italia.