Fertilizer runoff can cause algae to grow rapidly and pollute an aquatic ecosystem. Excess amounts of nitrogen and phosphorus are the _____ that cause this growth.

Shang Dynasty bronzes were made using the __________ process

A. lost wax B. coiling C. pinching D. piece-mold E. none of the above

Much of Egyptian culture and art was focused on __________

A. the daily lives of the pharaoh and his family B. glorifying military conquests C. serenity, permanence, and eternal life D. tributes to the gods