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.
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.
