What does an unconformity in a sequence of rock layers reveal about geologic history? The layers must have been deposited very quickly. The layers must cover hundreds of square miles. A layer of rock might have eroded. A rock layer must have turned upside down

Which technological breakthrough of the 1950s revolutionized the way that americans kept up with news and world events? a) radio b) internet c) television d) motion pictures

Speaker 1: now that we are independent, americans should create a government that mirrors the government of great britain. speaker 2: after experiencing a tyranny of great britain, americans know how important it is to limit the government's power. speaker 3: our victory in the revolutionary war prove that americans have wisdom to choose good leaders. speaker 4: as for former colonies, the american states are likely to thrive under a system of strong centralized government. which speaker would most likely support the government established by the articles of confederation? a. speaker 2 b. speaker 3 c. speaker 1 d. speaker 4

When zhang qin went to explore west, he brought back stories of