Which risk increased when pre-Columbian societies relied upon maizemaking earthenware ovens?

💡 Explanation

Increased reliance resulted in concentrated agriculture, intensifying vulnerability to crop failure; monoculture creates instability in yields because a single disease outbreak can devastate the primary food source, rather than diversified crops buffering losses.

• Increased road traffic causes which outcome within Roman 'specus' aqueducts?
• Which mechanism explains the long-term structural weakening in wrought iron bridges from the 19th century carrying railway traffic?
• Which limitation emerges when computing planetary ephemerides using Al-Battani's trigonometric algebraic methods without accounting for observational drift?
• Which factor most directly increased the killing power of first crossbows using small cast bronze trigger mechanisms during the Warring States period?
• Which mechanism ensured the longevity of Byzantine mosaic tesserae in the Hagia Sophia amid frequent seismic activity?
• Which maneuver by Viking longships increases during headwind sailing?