<span>Efficient agricultural practices made the workforce available for other endeavors. </span>
Answer:
Archaeologists also excavated a ditch for 30 feet. For thousands of years, farmers all over the world have used irrigation—diverting water from streams and rivers to water their fields. The Ancestral Puebloan people in the Four Corners region irrigated small plots of corn, bean, and squash. Mormons used this strategy in a big way.
Mary Bannaky was the daughter of Molly [an Englishwoman sent off to America<span> as an indentured servant at the age of 17. ... </span>Banneker<span> taught himself the </span>science<span> of astronomy; he made projections for solar and lunar eclipses and .... 16 </span>people<span> found this useful .... In </span>Technology<span> ...</span>
Lack of natural resources
