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"Through accessible text and informative photos, readers will explore ports, the backbone of commerce and trade throughout human civilization. Each chapter focuses on an important aspect of these facilities, including the history of ancient ports, the technological advances that have improved shipping over the centuries, profiles of port-related careers, and examples of the most impressive and influential ports of the modern era. Content directly correlates with Next Generation Science Standards, ensuring that young readers will be left with a deeper appreciation and respect for ports and the engineers that create and maintain them."--Provided by publisher.

Harbors --- Harbors.

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"Discover the many ways in which dams and levees are marvels of modern engineering through accessible text and informative photos. Each chapter focuses on an important aspect of these structures, including the history of their invention, examples of noteworthy dams and levees, related career paths, and stories of the tragedies that have occurred when dams and levees failed. This book's contents directly correlate with Next Generation Science Standards, ensuring that readers will be left with a deeper appreciation and respect for the engineering behind dams and levees, and the influence these beautiful structures have on our society."--Provided by publisher.

Dams --- Levees --- Dams. --- Levees.