Answer:
B. geographic features protected the North China Plain.
Explanation:
The North China Plain is protected on four fronts by imposing geographical feature, which allowed early Chinese civilization to flourish without much external influence or threat.
To the north, the Gobi Desert, to the West, the Chinese Mountains, and the Tibet, to the South, more mountains, and to the West, the China Sea and the Pacific Ocean.
There are many important actions taken by Washington together with the first congress, but we'll provide you with three of them as the question requests so: 1. Passing the first ten Amendments of the Constitution (Bill of Rights). There weren't proper constitutional provisions protecting the citizens' rights and liberties until the actual ratification of these 10 first Amendments in Dec 15, 1791; it was through the efforts of Madison, Washington and the First Congress that they came to be. 2. Planning the building of the first centralized US Bank. In order to establish financial order and security in the newly formed United States, the Secretary of Treasury Hamilton was given the lead position in building the "First Bank of the United States"; a supported and successful project by Washington and the First Congress. 3. Setting up the court system and precedents. The First Congress was responsible of applying and establishing further details of a new juridical system, as explained in the Judiciary Act 1789; it mainly established a Supreme Court, with inferior courts, too, based on precedents (previously decided cases as reliable basis).
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The things that interested Columbus the most in his first meeting with the Taino, as he himself wrote in his journal, were the abundant possesion of gold that the Taino showed and the inferred knowledge of them of the places where the gold could be found. In his opinion it was worthy to try to convert them to Christianity.
The both were not in the 20th century
