Human activities can disturb natural ecosystems. Which is a human activity that can change local ecosystems? *

A arrival of exotic insects after a hurricane

B tornadoes

C bird migration

D drainage and filling of wetlands for housing

wegner's theory did not explain how the continents could move

explanation:

i'd have to say the answer is probable the second option "the geosphere interacting with the atmosphere"

answer;

a. sheep consumption efficiency would be reduced.

explanation;

-trophic efficiency is a measure of how much energy occurs at one level divided by the energy at the level immediately below it . trophic efficiency incorporates three types of efficiency:

-the proportion of available energy that is consumed (consumption efficiency).   it is the proportion of the available biomass that is ingested by consumers.

-the proportion of ingested food that is assimilated (assimilation efficiency).

-the proportion of assimilated food that goes into new consumer biomass (production efficiency).

-in this case, the grasshoppers would affect sheep by reducing the proportion of the available biomass that is ingested by the sheep.