Answer:1.Estuaries support a diversity of species of fish, shellfish, aquatic plants and animals. The protected waters provide vital nesting, breeding and feeding habitats for many species. Estuaries also filter pollutants out of the water flowing through them, including pesticides, herbicides and heavy metals
2.They are the nurseries of oceans. Many fish and shellfish are spawned in estuaries. Full of nutrients and home to resilient organisms, estuaries provide rich feeding grounds for fish and birds.
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