How did satellites impact scientific understanding of space during the late 20th century?

Nationalism led to major conflicts following world war i, especially when:

This photo shows an early mesoamerican structure, specifically from the zapotec culture. what was this structure most likely used for? a.creating terraces for farm fieldsb.practicing religious ceremoniesc.playing a ball game with stone hoopsd.protecting a city from invading armies

Knights are to chivalry what samurai are to a. bushido c. buddhism b. shinto d. none of these select the best answer from the choices provided a b c d