Flash flooding is most likely to occur when heavy rain falls on

Match each of these art forms with the region of americas where they were commonly produced. elaborate headdresses nazca lines carved hieroglyphs wooden ceremonial masks the pacific north west mesoamerica the great plains the andes

Organum was first developed by religious singers adding another melody directly above the chant and mirroring the chant line. true false

Based on the sentence, what does a studious effort require