explain one example of a connection between Mongolian and Chinese political structures in the period 1200-1450

How do astronomers measure the amount of dark matter in the universe

The biome pictured above is found in areas such as kenya and south africa. the land is grass-covered with very few trees and gazelles and other grazers are common here. why does this biome have a low population of trees? a) large grazing animals destroy the trees. b) it is a deforested rainforest with poor soil. c) it has high temperatures and low precipitation. d) it has a long rainy season followed by flooding.

What was the effects of the mass demonstrations of strikes that had immediately followed the economic collapse beginning in 1893?