I am confused need help ASAP here is the question. Which statement more accurately describes a plateau? At least 1000 feet but not more

then 2000 feet in elevation
High and rugged with pointed tops
Rarely have steep sides
Raised plains of at least 2000 feet in elevation

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

Over half of the african-american population in the united states live in

Which of the following statements best describes the quantity theory of inflation? a.inflation occurs because production cost rise and this cost increase is passed on to consumers in the form of higher prices b. inflation occurs because there is too much money in the economy c. inflation occurs because demand of good and services exceeds existing supplies d. none of these