What is the amount of people the earth can support comfortably

Which of the layers of the earth has the following three characteristics? i. it is made of molten rock. ii. it has currents that are constantly moving. iii. earth’s plates float on top of its currents.

Which force of change to earth is caused by the movement of tectonic plates? a.erosion b.pollution c.earthquake d.wind i need and it’s 35 points so can someone plz me

The fact that similar fossils are found on both sides of the ocean is evidence of: a. global positioning. b. magnetic reversal. c. continental drift. d. oceanic drifts. select the best answer from the choices provided a b c d