A scientist discovered that Earth’s outer layer is made of plates. These plates can move. The movement of these plates explains why volcanoes and earthquakes occur and the formation of mountains. Should these observations be considered evidence for a theory or law? Why?

It explained the shift in in the earth from the plate tectonics and how when the volcano erupts it causes lava to come out

hammurabi rulers

good lesson

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.