The Proterozoic division of the geological time scale is an era of the Phanerozoic eon. The Proterozoic division began 2.5 billion years ago and ended 542.0 million years ago.
Of course it's possible, because it means that sintheta=-2/5 which satisfies this -1<=sintheta<=1
Answer:The energy of the molecules in the ground decreases.
I’m antisocial to, I can be ur friend :)
