Compared to all other forms of energy, wind power is most similar to tidal wave power

-the cost are about the same
-they generate the same amount of pollution
-they are high tech
-they work on the premise of a fluid interacting with a turbine

they work on the premise of a fluid interacting with a turbine

there is no

explanation:

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.