How can speciation of planets benifit humans

Wegeners theory of continental drift states that the continents have changed throughout history while the theory of plate tectonics

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

How can studying economics us make better choices about how to use scare resources