Which best describes a possible negative impact of irrigation of farmland? 1.) Food can be produced in dry areas.
2.) Increased runoff can pollute bodies of water.
3.) Food can be produced through drought years.
4.) Water can improve the livelihood of farmers.

2

Explanation:

My uncle; who lived on a farm said that they always had to be careful about to much runoff that usually pollutes water and I learned about that a while ago in science, so I think 2 is the most negative impact.

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.