The magnetosphere interacts with solar flares. It helps to redirect them. Otherwise, the Earth would be greatly heated and human life would become much harder to sustain, as homeostasis would require better cooling mechanisms.
It is were the waste in your body comes out eg. urine, snot and sweat.
A heart pound? I'm guessing lmaoooo
New crust is formed on the opposite end of the plate as it pulled away from.