The Supremacy Clause is a clause within Article VI of the U.S. Constitution which dictates that federal law is the "supreme law of the land." ... Under the doctrine of preemption, which is based on the Supremacy Clause, federal law preempts state law, even when the laws conflict.
The West African city that became an economic center of trade due to regional commerce is Timbuktu.'
<h3>How did
Timbuktu become a regional center of commerce in West Africa?</h3>
Timbuktu's strategic location at the confluence of desert and water made it an ideal trading center. It was absorbed by the Mali empire in the late 13th or early 14th century. By the 14th century, it was a thriving trans-Saharan gold and salt commerce center, as well as a center of Islamic culture.
The city's proximity to the Niger River encouraged trade between West Africa and Morocco in North Africa. By the early 1300s, Timbuktu had become the nexus of a variety of east-west and north-south commerce routes, and it quickly became the Mali Empire's primary commercial metropolis (albeit not it's capital).
Learn mroe about Timbuktu:
brainly.com/question/1276832
#SPJ1
<span>You have been involved in a
"token economy".</span>
A token
economy compensates great conduct with tokens that can be traded for something
wanted. A token can be a chip, coin, star, sticker, or something that can be
traded for what the subject needs to purchase. Instructors give understudies a
token when their conduct coordinates the targeted conduct.
