Which enabling innovation caused ancestral Puebloans in the southwestern US to cultivate drought-resistant maize in arid environments?

💡 Explanation

When ancestral Puebloans cultivated drought-resilient maize, waffle gardens concentrated rainfall flow because they capture and concentrate scarce rainwater near individual plants, increasing localised hydration. Therefore waffle gardens result, rather than terraces which redirect floodwaters, aqueducts focused on transport, or crop rotation focused solely on soil fertility.

• Which mechanism enabled increased hull strength during 18th-century ship construction using 'diagonal bracing'?
• Which outcome resulted from tin contamination during ancient bronze metallurgy processes?
• Which benefit did the 'chinampa' system provide for Aztec agriculture in Tenochtitlan's marshy environment?
• Which outcome occurs when the water level in a canal lock drops too rapidly during ship passage?
• Which risk increased during the construction of ziggurats when workers laid mudbricks in hot, dry conditions?
• Which consequence results if a period 1750-1820 ship's chronometer experiences sustained pendulum-effect motions?