6. (ETS2.1) A life-centered worldview is particularly concerned with which of the following? a. finding more effective ways to manage Earth as a support system for life
b. avoiding human activities that may hasten the extinction of other species
c. identifying and protecting species that can contribute to humans' survival
d. understanding how people are part of, and dependent on, nature

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.

b is the answer and if you need further with anything message me

b . streams flow into shallow areas.

f . movement of earth’s crust creates low areas that fill with water.