Compared to continental rocks, some of which are more than 4 billion years old, the rocks of the ocean floor are:.

What is the reason for the “scramble for africa”?

Lomexico, central america, and the caribbean: mastery testselect the correct answer. which of the following was the leading cause of death among native americans after the arrival of europeans? a. conquistadorsb. diseasec. starvationd. warreset

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks