a) Give reasons why the 49°N latitude and the 100°W longitude are important for North
America.
b) Where are the Great Lakes situated? Which river drains these lakes into the Atlantic Ocean?
c) Describe the Amazon, the largest river of South America and the La Plata River system.
Answers
Answer:
Answer:The 49° N latitude and the 100°W longitude are important for North America. Answer: The 49° N latitude marks the boundary between Canada and United States whereas 100°W longitude passes through the centre of North America. So both are important.
Explanation:
The Great Rivers are located in the Canadian or Laurentian shield. The St. Lawrence River connects and drains the Great Lakes.
The Amazon River rises in the Andes Mountains and flow Westward across the widest part of the continent. This is the largest river in the world. The equator passes near the mouth of this river. It divides the Guiana Highlands and the Brazilian highlands. The flat plains that are formed by the Parana Paraguay and Uruguay rivers collectively is called La Plata river system. These rivers flow southwards and drain into the South Atlantic Ocean in a wide estuary in Argentina which provides on excellent harbour.