When floods occur some other soil flows with the flood. This is Called Splash Erosion. When wind blows it will bring other soil particles with it. This is called Wind Erosion. When we walk our slippers bring soil or dirt that carries them to other places. This is called normally Erosion. When animals walk or run they bring the soil dirt with them too. This is also called Erosion.
Water as it flows on the surface it  loosens soil particles and carry these particles as it runs off, wind is also an agent of erosion because as it blows dust particles which are on
on the surface are carried as it blows, and as for people activities like digging and quarrying causes erosion, while animals burrow and dig too also causes erosion