•prehistoric indian civilizations created them
• made of dirt by hundreds of workers
• used for different purposes, like burying the dead or building sites for important temples
the phrases in the box above best describe
earth homes
soil deposits
earth mounds
land fills

Why were americans concerned about the future of north and south america? check all of the boxes that apply. they worried that european countries would take over independent countries in latin america. they thought that european nations could threaten democracy in the united states. they believed that europe would never again return to the americas.