Is the fish ok?
Because the Earth is rotating at aprox 1000 miles/hour, if the Earth was to suddenly stop, the inertia we have would disappear, which will cause us to stop in our tracks and practically die in less than a second
Is the core what forces to Earth to rotate?
The main question is not what makes Earth rotate but what layers of Earth rotate at what speed. If Earth were a solid body then it would rotate with same angular speed everywhere. But the interior of the Earth is liquid, so the picture is quite complicated. Only thing that is obvious is that every part of Earth must rotate (at some speed or other) because of friction: if one layer (say crust) were rotating and other (say mantle) weren't then after a little while it would start to rotate anyway because the atoms of the moving layer would drag the atoms of the static layer with them.
Thor's hammer as a pickaxe
Beautiful.. Isn't she?
Shiiit dude, you hitting me with that unexpected turn of events, while high, just made my night
Oie mami k riko

