The barrier islands in Georgia benefit the state in the following two ways:
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They protect the coastline from waves and wind - The barrier islands act as a buffer, reducing the impact of storm surges and strong winds on the mainland, thus helping to protect coastal ecosystems and human settlements.
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They serve as a tourist destination - The barrier islands attract tourists for their natural beauty, recreational activities, and unique ecosystems, which contribute to the local economy through tourism-related revenue.
These two points summarize the benefits that barrier islands provide to Georgia.