What do political maps show us? (there are 3 answers)
A. Boundaries between governments and their territories
B. Which nations are sovereign
C. Income brackets of the population
D. The terrain of an area

Using complete sentences, describe the central economic problem facing all humans. why does this require people to make choices? how can this result in opportunity costs?

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.

In the developed world, describe the changing role of women in agriculture.