Which of the following activities is most likely to result in sediment pollution?
a. cutting down trees
b. pouring motor oil down the drain
C. excess fertilizer use
d. none of the above

C excess fertilizer use

Explanation:

The grass wont use all fertilizer used if it is too much, or sometimes even if it is just enough. Which will lead to it polluting sediment, water, etc.

a and b

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.