Answer:
The Correct Answer is
The exchange permanently changed the natural and human environments
Explanation:
Columbus underwent deep voyages and discovered present-day America. He also discovered the marine route which associated the old Eastern world to the new Western world.
After the establishment of the Sea route there was an exchange of goods with other countries started. But the negative impact was that people of Eurasia were not healthy with high levels of immunity.
The interchange of food supplies initiated the arrival of dangerous diseases too and a major part of the European, Native American, and Asian population died causing a shortage of human labor, this gradually leads to the slavery of Africans.
The correct answer is <em>D. Image A: dual federalism; Image B: cooperative federalism.
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Cooperative federalism is a political system where the line that divides the responsibilities and faculties of the federal government and the state governments is not clear. Dual federalism is a system where the responsibilities and faculties of the federal government and the state governments are clearly defined.
The rigid structure of Dual federalism has horizontal power between national and state governments. It also respects sovereignty in their fields and promotes competition. The structure of Cooperative federalism has a vertical power between national and state governments, it is more flexible and promotes cooperation.
They are in eastern and Central Europe.
