Which took place in 1853?

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.

By july of 1950 north korean forces had pushed south korean forces as far south as

Should the united states have continued to fight in the vietnam war after 1968?