What region of the earth is the Philippines found? Artic
Antarctic
Tropical
Temperate

¿cual es mas alta en baja california,la migracion o la inmigracion?

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

What is the main source of phosphorus?