why is an estuaries called nursery of the sea

Answer:
Because many species of fish and wildlife rely on the sheltered waters of estuaries as protected spawning places, estuaries are often called the "nurseries of the sea.
Answer:
C. It is a home for many plants and animals.
Explanation:
Because many species of fish and wildlife rely on the sheltered waters of estuaries as protected spawning places, estuaries are often called the "nurseries of the sea.