Question

how did john d rockefeller vertically integrate his monopoly in 1882? he created a trust that controlled oil wells, refineries, and distribution networks he created a trust that controlled ninety percent of the nations oil refineries he purchased coal plants around the country to add to his business he purchased iron mines around the country to add to his business

Explanation:

Vertical integration involves controlling different stages of the production - distribution process. Rockefeller's trust in 1882 controlled oil wells (source), refineries (processing), and distribution networks (delivery), which is a classic example of vertical integration.

Answer:

He created a trust that controlled oil wells, refineries, and distribution networks