Marcus is taking a hiking trip in the mountains. he sees long scratches on the rock walls. the area was most likely eroded by a glacier rock slide mudflow talus

What is the name of the ocean current that affects the british isles? how does it influence their climate?

The layers of earth are based on what two sets of characteristics?

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