Which of the following posed the most serious problem for african americans who migrated to the north during the late 19th century? a) a lack of housing for a large influx of migrants. b) a shortage of available farmland for unskilled workers. c) resentment that the civil war had cost many northern deaths. d) competition for jobs from a large wave of european immigrants

Why are fossils of organism's from the phanerozoic eon much more likely to be found than fossils of organisms from any other eon? a. more organisms present during the phanerozoic eon had soft body parts. b. organisms present during the phanerozoic eon were all microscopic. c. more organisms present during the phanerozoic eon had hard body parts. d. organisms present during the phanerozoic eon are the most ancient life forms.

The increase of pollutants from in mexico has raised concerns about garage to health and the environment

In north america, most winter storms form when cold, dry air from interacts with warm, moist air from