Which of the. following describes a solution that contains buffer

answer:

sodium hydroxide, a base, is added to the solution, but the ph of the solution does not change. when we talk about a buffer solution it is about resistance in change of ph when small quantity of alkali or acid added to it. sodium hydroxide is a weak base so adding it to ph less than 7 is more likely to resist.

explanation:

well

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.