The number one killer in the united states among adults of all ages is?

Why is it problematic for historians to use oversimplification when writing about the past?

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.

Why is it important that dr. luther king jr. use non-violent protest to create social change?