The Paraguay and Parana Rivers jointly form a 3,302-kilometer waterway system connecting Argentina, Brazil, Bolivia, Paraguay, and Uruguay. It is a major transportation route between the continent's interior and the Atlantic Ocean through the Rio de la Plata, and carries nearly 80 percent of Paraguay's trade.
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Answer:
Correct answer is 4. Under 2.5 people per sq. mi. (VERY low density)
Explanation:
Option four is the correct because areas such as Sahara have a low density and are not populated. The conditions of living are not allowing people in these type of areas to create some larger permanent settlements. The similar case is for example in Australia where 3/4 is covered with desert, which is practically uninhabited. Or we can also created a parallel with Greenland which also has a low density due to climate factor.
Fundamental principle is the answer to the question
