Due to overfarming a field, the soil has become unsuitable for growing crops and is now covered with weeds. even the worms, which would have been in restoring the soil's fertility, are gone. which interference most likely occurred? . a. human interference led to the decomposition of the materials in the field, making it more fertile.. b. human interference led to increased productivity of the field.. c. human interference led to a change in the ecological succession of the field.

C. .Human interference led to a change in the ecological succession of the field.

Explanation:

WHen you grow crops in a certain soil you have to make sure that the minerals and nutrients that the soil has are adecuate to what you are growing, and that those minerals and nutrients won´t run off if you keep growing those crops, otherwise you´d have to rotate crops in order to maximize your season, however when this doesn´t happen and a crop that dries up the ground of nutrients continues to be planted, human interference leads to a change in the ecological succession of the field.

1-5 2-7 3-4

explanation:

doctrine that the us had the right to expand throughout north america.