Answer:
Roman engineers used inverted siphons to move water across a valley if they judged it impractical to build a raised aqueduct. The Roman legions were largely responsible for building the aqueducts. Maintenance was often done by slaves. The Romans were among the first civilizations to harness the power of water.
Explanation:
b. Northwest
The Northwest Passage was a presumed pathway through which sailors could easily sail through the Americas to reach the Pacific Ocean and India. However, it did not exist and sailors were forced to travel around the southern tip of South America until the construction of the Panama Canal in the early 1900s.
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it was added because they didt have enough money
The church assumed governmental duties and created a church hierarchy.
