What was affected by the exchange of biology, food, and natural resources during the Columbian Exchange? A much of the known world, through trade and contact B only Europe and the Americas C only Europe, the Americas, and Africa D only North and South America

A much of the known world, through trade and contact

Explanation:

The Americas and Europe started the Columbian Exchange, because this exchange was caused by European explorers setting foot in the American continent. However, the exchanges also reached Africa, and Asia, even as far as China or Southeast Asia, so we can say that it affected much of the known world at the time.

the   square   deal   was   a   program   where   the   government gave any one   a fair   chance   to succeed

in february 1787, congress decided that a convention should be convened to revise the articles of confederation, the nation’s first constitution. in may, 55 delegates came to philadelphia, and the constitutional convention began. debates erupted over representation in congress, over slavery, and over the new executive branch. the debates continued through four hot and muggy months. but eventually the delegates reached compromises, and on september 17, they produced the u.s. constitution, replacing the articles with the governing document that has functioned effectively for more than 200 years.