¿Qué ejemplos puedes dar para mostrar que las interacciones entre los colonos
europeos y los indígenas norteamericanos
tuvieron consecuencias negativas?

The Iroquois Confederacy was one of the largest native nations on the continent.  They had an organized government, were armed with European guns and trapped beaver furs and other pelts in upstate New York and Pennsylvania.  They allied themselves with the British against the French and their native allies, the Huron.  

The Beaver Wars of the 1640’s saw the Iroquois fight the French and the Hurons over beaver pelts and hunting land rights in the Ohio Valley.  The Iroquois would also defeat numerous other native tribes during this time and chase them out of their lands.

In Pennsylvania, Native American and European relations were much friendlier, thanks to founder William Penn. Penn and the Quakers established peaceful relations with many local tribes, even though these tribes were controlled by the Iroquois.  However, the Scots-Irish and other Europeans would expand westward and create conflict with the natives. By 1740, relations soured and many tribes were decimated.

Explanation:

en que museo se vendieron algunas de las colecciones incas?

la palabra "en " se usa para nombrar lugares.