I believe the answer is: the Columbian Exchange
Columbian exchange refers to the exchange of knowledge, labour culture, plants , and animals that heppened between countries in american continent during the 1500s. When the exchange happens, different races crossbreed with one another which resulted in the birth of new races.
WW2 I believe/think. That would be my answer.
When there's a telephone bomb threat, it's important to keep the caller on the line as long as possible.
<h3>What is a threat?</h3>
A threat simply means a statement of intention to causes harm or injury to another person.
In the event of a telephone bomb threat, it is important to keep the caller on the line as long as possible.
Also, be polite and show interest to keep talking to the person and then signal a note to other staffs to contact the appropriate authority.
Learn more about threats on:
brainly.com/question/25758530
