Which statement offers the best critique of how humans have impacted the environment through agricultural activities?

Question

1) Humans did not impact the physical environment until the last 150 years.
2) The agricultural practice of slash and burn does not impact the physical environment in modern times.
3) Human agricultural activities have always impacted the physical environment.
4) Chemicals applied on agricultural crops have led to the lessening of cultural eutrophication.

Answer 1

Option 4) Chemicals applied on agricultural crops have led to the lessening of cultural eutrophication does not offer a critique of how humans have impacted the environment through agricultural activities. It implies that the use of chemicals in agriculture has had a positive effect on the environment, rather than acknowledging any negative impacts.