What was the leading cause of death of American Indians? Lack of clean water
War
Disease
Malnutrition

In what way did expansion and global trade during the 15th to 18th centuries affect the economies of european countries

What is the name for the main idea behind the settling of western lands by americans in the early-1800s?

Anoxia, or a lack of oxygen in bodies of water, leads to a. unsafe drinking water b. dead zones c. global warming d. algae blooms select the best answer from the choices provided. a b c d