1) why does BOLTSS make map easier? 2) What does orientation mean? In your own words I’ll brainlist!!!

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.

Lines of longitude are like stripes from the top of the globe down to the bottom virtually slicing the earth like an orange

Find the coordinates of a if b(-9,-10) is the midpoint of ac and c has the coordinates of (-1,9)