There are hundreds of reasons, it be caused by currents, bad direction, strong wind.
Ships make a wake that draws them closer to each other, so if they are sailing close to each other they will eventually collide.
Two objects collide with each other when they come into contact or impact each other.
No, hurricanes do not collide with each other. Instead, they can interact in ways that influence each other's paths and intensities, but they do not physically collide.
No, hurricanes cannot collide with each other. When two hurricanes come close to each other, they typically rotate around a common center or merge into a single, larger storm.
No, hurricanes cannot collide with each other. If two hurricanes come close to each other, they will typically rotate around a common center or merge into a larger storm.
solids
When photons collide with each other or with other particles, they can either scatter off each other, be absorbed by the particles, or create new particles through processes like pair production.
When a particle and its antiparticle collide, they annihilate each other and release energy in the form of photons or other particles.
armageddon
It creates mountians
collide into each other
they hug each other