Which one is an accurate description of the process of erosion?

a.
breaking rocks into smaller pieces

b.
forming rocks and depositing them in new places

c.
moving bits of rock and soil across the earth’s surface by water, wind, or glaciers

d.
water moving over the earth's surface and into the atmosphere

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