Omar was born and raised in tanzania . he moved to the united states to study at one of its universities omers migration demonstrates the
choose one
push factor of a developed nation, pull factor of a developed nation, or push factor of poor nation.
omar can be described as
choose one
he refugee, and immigrant, or an asylum seeker in the us.

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