How did gold and silver mining in north and south america impact spain's economy?

Which choice describes some of the difficulties john adams faced as presidet

True or false: abraham lincoln delayed the emancipation proclamation to make sure the border states would stay loyal. *

Which statements explain reasons why unconformities occur? check all that apply. rocks along a fault break and move. igneous rock forms at earth’s surface. rocks erode and sediment is deposited. no sediment is deposited over a long time. igneous rock forms between sedimentary layers.