I believe the answer is Observations.
Mayan civilizations made architectural designs to use time and days.
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Harappan civilization forms an important landmark in the prehistory of the Indian subcontinent. The civilization offers an excellent example to the modern world in various ways. Their expertise in town planning, water management and harvesting systems as well as drainage mechanism is unparalleled.
Answer:
A
Explanation:
Because I listen to the direct instruction.
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It was primarily the "b. formation of the Vietcong in Vietnam" that led the Truman administration to expand the containment doctrine to include Asia, since this was seen as a threat to democratic principles in the west as well.
Answer:
Civil Service Act
competitive examinations
Explanation:
The Civil Service Act of 1883 presents the federal vision to guarantee federal jobs on the basis of merit. This act has replaced the spoil system in which the job of federal employees were depending on the loyalty towards the political party. A new system of competitive exam ensured that jobs of federal employees no more depend on the political leaders.