common market, like the EU, is a group of nations agree to have no barrier for trade among themselves.
so ans is no barriers to trade from nation to nation
Answer:
A rectangle is bounded by the x-axis and the semicircle y = √(25 - x²). What length and width should the rectangle have so that its area is a maximum?
Explanation:
Answer:
<h2>B. Cahokia</h2>
Explanation:
Cahokia was a pre-columbian Native American city across the Mississippi River. It existed in 1050-1350. The Cahokia mound is the site where this city was located, this park is in western Illinois. It covers almost 890 hectares and contains 80 mounds. At its peak around 100 CE it covered 16 square kilometres and had about 120 man made mounds of all shapes, sizes and function. It population was slightly more than London.
