Answer:
Ascending and falling air create high and low pressure zones. Air rises as it warms, resulting in low pressure at the surface. When the air cools, it descends, resulting in a build-up of pressure near the surface.
Air pollution, biodiversity
Answer:
When these forests are cut down, the plants and animals that live in the forests are destroyed, and some species are at risk of being made extinct. Further, as the large-scale harvesting of lumber from the rain forests continues, the balance of the earth's eco-system is disrupted.
Explanation: did that help? hope it does.
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.
