Explain the difference between weathering and erosion

Erosion is the removal and transport of surface materials(soil,rocks,mud etc)..

Weathering occurs in place whereas erosion involves movement to a new location ..

my hotdog is jiggly bruh no kap

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.