The Mongols set up a tribute empire called The Golden Horde. Serfdom arose as peasants gave up their lands to the aristocracy in exchange for protection from the Mongols. Moscow benefited financially by acting as a tribute collector for the Mongols. Mongol rule kept Russia culturally isolated from Western European trends such as the Renaissance.
Many scientists think the sun and the rest of the solar system formed from a giant, rotating cloud of gas and dust known as the solar nebula. As the nebula collapsed because of its gravity, it spun faster and flattened into a disk. Most of the material was pulled toward the center to form the sun.
To address problems caused by the dissolution of the Soviet Union some Eastern European nations privatized industry, increased foreign investment, and joined the European Union.
So answers are A), B), and E).
The correct answer for the question that is being presented above is this one: "B. a decrease in pressure." At divergent plate boundaries in the ocean, magma rises and melts because of<span> a decrease in pressure. The magma rises and melts as the divergent plate boundaries in the ocean decreased in pressure.</span>
Mass killings and genocide
