What is one item that the authors mentioned that was found near Cahokia and led archaeologists to conclude that it was a major trading center?

the answer is use of support  

i do believe its (d) it allowed the government to offer pioneers sixty acres of western land if they lived on it and made improvements to it.

explanation: signed into law in may 1862, the homestead act opened up settlement in the western united states, allowing any american, including freed slaves, to put in a claim for up to 160 free acres of federal land. by the end of the civil war, 15,000 homestead claims had been established, and more followed in the postwar years

the answer is actually b.   as habitats are destroyed, animals and plants may become extinct.   , according to edge nuity

it was the shinto. the answer is c.