Answer:
Upwelling occurs when winds blowing across the ocean surface push water away from an area and subsurface water rises up to replace the diverging surface water. Major upwelling areas along the world's coasts are highlighted in red.
Explanation:
Answer:Obsidian was volcanic glass in a ring of volcanoes along the Pacific coast of the Maya area. Mayan technicians made techniques for cutting sharp blades. As said, Mayans used specialized jade tools that helped their technological achievements. Maya is thought to be the first civil engineers of the Americas.
Explanation:
This is a sharecropper.
(Dictionary) sharecropper (noun):
tenant farmer who gives part of each crop as rent
