1.Alfred Wegener formed the theory of continental drift in 1912. What prevented research of the ocean floor, paleomagnetism, and earthquakes at that time?

How long does it take hair to grow 8 inches?

Me plzzz what is the ratio of water than falls on land as compared to the amount that falls onto the oceans? what role do clouds play in regulating earth’s energy balance? me plzzz

Which of teh following would explain the importance of the trans-siberian railroad to russia's economy? (schoology test)