What are the main effects of humans on the environment in the rocky mountains ? (pollution, clear cutting forests, establishing conservation land, etc.)

Human impact on the Pacific Coastal Range

Pollution by humans is a major impact on the pacific coastal range. It can kill ocean animals, cause toxic zones, and change food dynamics. Pollution can also harm a human's health and cause an economic loss for fisheries because the fish die.

Explanation:

the answer is d. made landless peasants that owners of large haciendas