Which prosses is responsible for crakes in successive strata in the earth

What first caused people to consider that the continents were once one large landmass?

Which year held a congressional election and a presidential election

In upholding louisiana's separate car act, the supreme court claimed thatsegregation was not the same as discriminationthe fourteenth amendment did not apply to southern statesdiscrimination was necessary in order to maintain public ordero segregation was unconstitutional based on the fourteenth amendment