Answer:
center planning ; Price.
Explanation:
the blank will be filled with central planning; Price.
center planning system is the system in which the decision is taken by the central government.
Most of the world's nation believe in the central planning system for economic decisions.
The price system is the system in which money is used for the valuation and distribution of goods and services.
People might be able to solve coal mining from harming habitats maybe by finding a new way to run trains instead of coal. or by mining for coal less.
<span>d. a body of civil law that controlled byzantine life.
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