Which crop was introduced to Europeans due to exploration of the Americas ? A. rice B. tobacco C. coffee D. Sugarcane

Which of the following is/are a major technological advances of the mayan civilization? a. the calendar c. math b. architecture d. all of the above

Which artificial waterway allows the passageway allows the passage of boats between buffalo and albany ( new york) and, eventually, the atlantic ocean? a. erie canal b. suez canal c. panama canal d. ontario canal

What resulted from president john f kennedy's commission on the status of women