Final answer:
The creation of the Interstate Commerce Act in 1887 addressed concerns of growing monopolies by granting Congress the power to investigate trusts, expanding federal government control of railroad operations, and allowing some private railway companies to continue self-regulation.
Step-by-step explanation:
The creation of the Interstate Commerce Act in 1887 addressed concerns of growing monopolies in the following ways:
- It granted Congress the power to investigate all trusts.
- It expanded federal government control of railroad operations.
- It allowed some private railway companies to continue self-regulation.
These measures aimed to curtail anticompetitive practices, promote fair pricing, and protect the interests of farmers and small businesses.