Which statements did both Aristotle and Ptolemy assume? Check all that apply

your answer is "the 1950's"

the farther away the object is from the central star (the sun) it's gravitainal pull on the object is weaker when it is farther

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.