Answer:
DRC has a mixed economic system which includes a variety of private freedom, combined with centralized economic planning and government regulation.
Explanation:
The Concert of Europe was a system of dispute resolution adopted by the major conservative powers of Europe to maintain their power, oppose revolutionary movements, weaken the forces of nationalism, and uphold the balance of power.
D. Increased migration to the United States
Definition: Traditionally, the term "international conflict" referred to conflicts between different nation-states and conflicts between people and organizations in different nation-states.
Your answer is) People have become more interested in protecting wetlands than they used to be.