Aforest is cut down and replaced with a cornfield a negative consequence of the practice will be a

A decrease in biodiversity.

EXPLANATION:

A forest is cut down and supplanted with a cornfield a negative outcome of the exercise will be a reduction in biodiversity The fundamental driver of the loss of biodiversity can be ascribed to the impact of individuals on the world's biological community, transformation of forestland to homesteads, farms, or urban utilize is one of the primary drivers of a decline in biodiversity

a

explanation:

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls