Which features could be best viewed on a map with the scale 1 centimeter : 100 kilometers

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.

What two properties affect the density of ocean water

What are the similarities and differences in the way geologists and biologists approximate the age of the earth? justify your response in two or more complete sentences.