The Columbian Exchange also had positive and negative effects. The positive side was the exchange of technology in agriculture, for example, which increased crop yields and food production in favor of Native Americans and in favor of Europeans. One of the negative effects was certainly the appearance of many diseases that Europeans transferred to the American continent. Native Americans first faced such illnesses, were non-resistant to them, and many of them died.
The correct answer according to the options offered is: A.
Answer: Boston massacre.
Also, trade cutoff from Great Britain.
Explanation:
One of the reasons Americans believe they were on the brink of loosing their rights and freedom is the Boston Massacre.
The Boston Massacre occured during late September of 1768, when British soldiers had been sent to the Massachusetts colony. The soldiers harassed women and children daily. During the time, there was cut off of trade with Great Britain which makes goods to be scarce and higher prices were being charged for them.
On the 5th of March,1770 there was Verbal attacks from the colonist which gave way to physical confrontations, which later led to soldiers firings. These, in turn lead to the Massacre. Which is popularly known as the Boston Massacre.
Answer:
Rival ethnic groups forced to live together causing conflicts and wars. Lost many resources without equal return. ... Africans were forced to work on plantations and in mines for very little money.