https://study.com/academy/lesson/how-geography-isolated-ancient-china.html
That video will explain everything. I have already learned this in school, and it is very important on the test. VERY IMPORTANT.
A glacial valley cross-sectional shape is a U shape whereas a stream valley is usually a V shape. The U shape comes from the scouring action of the alpine glaciers which carries rocks with it which can abrade the walls of the valley and the glacier occupies the whole valley so scours out such a shape whereas the stream cuts down and water washes in from the sides of the valley into the stream or river creating the V shape.
Answer:
The Mackenzie River flows into Beaufort Sea and Arctic Ocean.
Answer:
NAFTA and its purpose are to eliminate the obstacles in the trade between the USA, Canada, and Mexico.
Explanation:
It is a NorthAmerican agreement for trading between these 3 countries. It is the biggest agreement for free trade. NAFTA has abolished customs duties on more than half of Mexico's exports to the US and more than today's third US to Mexico.