Answer:
Explanation:
During El Nino, the jet stream goes from west to east. While it is oriented from west to east it crosses the southern portion of the United States of America. This region becomes a lot more susceptible to severe weather during the winter. During La Nina, the jet stream and very severe weather are more likely to happen more farther to the north.
In a valley a glacier passed through
Societies are classified on the basis of dominant types of economic activity into agrarian and industrial societies. In an agrarian society the dominant type of economic activity is agricultural whereas in an industrial society factory production is the dominant type of economic activity.
Erosion. Erosion causes gaps in rock layers after a long period of time.