A. Spanish conquistadors bring their horses with them across the Atlantic. Some horses escape or swim to shore after a ship sinks. The Plains Indians become expert horsemen and buffalo hunters.
This was certainly not intentional since hardly the conquistadors would want their enemies to be stronger.
B. B. Rats are aboard European ships coming to the Americas. The rats spread disease and hunt unknown numbers of smaller animals to extinction.
This is hardly intentional. Rats were almost unavoidable back then and the Europeans just did not care much about them. They weren't thinking about how the rats would cause trouble in the Americas. They were "just rats".
So the only intentional one is:
C. Columbus brought pigs to the Americas on his second voyage. The pigs provided a valuable source of food for a growing population.
Columbus brought pigs for them to serve as food eventually and so they did.
I think the reason for this transfer of residents might be caused by Dallas, Charlotte and Atlanta's favorable conditions of the black populations. They might have felt that they are better off living in this area. There must have been better laws that provide benefits and opportunities. These areas in the US have a big population of black people it helps them agree with each other.
When the American and British allies successfully invaded
Italy, General Eisenhower began to plan the invasion of Normandy that would be
called Operation Neptune that would involve an aerial and amphibious invasion
by American and Allied troops to free France from the Germans.
Answer:
Global warming
Explanation:
as I said my answer is global warming I'm saying this because when am going with it coz when ever global warming occurs it causes the increase in the world temperature and also the increase in the volume of water in oceans and seas so I spent no I'm saying this because in the last century people have been cutting down trees n swamp draining which causes global warming and it causes the rise in the earth temperature
