What causes density currents to form in the mediterranean sea?

a. condensation

b. evaporation

c. transpiration

d. upwelling

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.

Exactly what kind of weather conditions would a cold front produce?

What is the largest river in the united states?