A imagem mostra um experimento realizado para estudar a combustão. a) Cite a evidência visual que caracteriza a combustão.

b) Qual é o comburente e qual é a porcentagem aproximada desse gás na atmosfera?

c) A quantidade de gases nos copos, utilizada no experimento, é a mesma? Justifique.

d) Explique por que a vela apagou.

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.

thinking it would be physical characteristics

i thinking chemical change

the answer is c most of the fortnite players usually buy v bucks to get the battle pass and other cosmetics but some players who are referred to as "no skins" don't   buy skins and are usually noobs.