It means to meet unexectedly
so they don't bump into each other and don't mess each other up. so they don't bump into each other and don't mess each other up.
tectonic
Goldfish to not kiss each other. They may play, or bump into each other, but they do not kiss.
Taken from the sitcom "Friends", it is Ross and Monica's way of giving each other the middle finger.
Liquids
They dont move.
because it has axis
not convection
an earth quake
Conduction
because it is very dangerous
because the moon has an orbit that goes around the earth which is a path that the moon takes so it will not bump into any other planets