European opposition to immigration primarily relates to

unauthorized immigration.
increased cultural diversity.
insufficient natural resources.
rapid overpopulation and crowding.
the expansion of crime and unemployment.

Yes

Your answer is d. silli hope this ! : ) i left an explanation down below if you need it: a sill forms when hot magma squeezes between layers of rock to form a hardened sheet of rock. a sill is basically a tabular sheet intrusion between old layers of sedimentary rock, volcanic beds, or in the direction of foliation inherent in metamorphic rock. the word sill means a concordant intrusive sheet.

He introduced the separation of religion and government