Which of the following processes is least affected by agricultural practices? a) cultural eutrophication b) sediment pollution from erosion c) the recharging of aquifers d) the flooding of land cleared to grow crops e) desertification

The correct option is this: THE FLOODING OF LAND CLEARED TO GROW CROPS. The correct option is D.
All the processes listed in the options above are affected in the negative way  by agricultural practices. Cultural eutrophication occurs when all the living organisms in a body of water die as a result of pollution.This can be caused by fertilizer run offs. The recharging of underground water is negatively affected by agricultural practices, fertile lands also become desserts and sediment pollution from erosion occur from agricultural practices.

Sequoia national park  /  inyo national forest, california, u.s. mount whitney is the tallest mountain in california, as well as the highest summit in the contiguous united states and thesierra nevada—with an elevation of 14,505 feet (4,421 m).