What changes happened with the animal in the precambrian era

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

Find the equation of the line passing through the point (–1, 5) and perpendicular to the line 3x + y = 4.

The great scientist alfred wegener proposed that continents have moved, while other scientists such as t.c.chamberlin argued against wegener. wegener's ideas eventually won, and are now widely accepted, because: a) wegener's ideas were more beautiful, and so were favored by the intellectual elite.b) wegener's ideas did a better job of predicting the results of new observations and experiments.c) wegener's ideas appealed to dead white european males, whereas chamberlin's didn't.d) wegener's ideas appalled dead white european males, and we all know that in this politically correct era,dead white european males cannot get a fair shake.e) wegener won the nobel prize.