É importante diminuir o consumo de água na escola e em casa, uma vez que esta apenas é importante para o ser humano

answer; i believe that the correct answer is (b) melosis; plz check first.good luck

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.

sound moves fastest in solids because the molecules are tightly packed and it allows sound to vibrate