Allows people to use cell phones and send information over the internet?

Why was it difficult fpr unions to succeed in the 1800s

What kind of relationship did the soviet union have with the united states in 1945

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.