Respuesta :

Answer:

Explanation:

They serve as not only as havens for recreation during all seasons, these inland seas also provide a crucial marine transportation system for many of the state's top economic industries. Canals, rivers, straits, locks and channels connect the lakes together form one of the busiest shipping areas in the world.

Answer:

The great lakes are so important because they are one of the largest sources of fresh water in the world.