Estuaries

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What is an estuary?

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An estuary is a coastal area where fresh water from rivers meets and mixes with salt water from the ocean.

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NGSS.MS-ESS2-4

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What does 'brackish' mean?

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Brackish refers to water that is a mix of salt water and fresh water.

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Why are estuaries often called the 'nurseries of the sea'?

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Estuaries provide a safe environment for many marine species to breed and grow, making them crucial for the life cycle of these species.

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List three important roles of estuaries in the environment.

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1. They filter pollutants from water. 2. They prevent erosion of shorelines. 3. They provide habitats for diverse wildlife.

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What types of species rely on estuaries for their life cycles?

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Many marine species, including fish, birds, and invertebrates, rely on estuaries for breeding, feeding, and shelter.

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NGSS.MS-LS2-2

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How do estuaries contribute to biodiversity?

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Estuaries support a wide variety of plant and animal species due to their unique mix of salt and fresh water, creating diverse habitats.

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NGSS.MS-LS2-2

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What human activities can impact estuaries?

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Urban development, pollution, and overfishing can negatively affect estuary ecosystems.

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NGSS.MS-ESS3-3

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What is the significance of nutrient availability in estuaries?

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Estuaries are often nutrient-rich, supporting a high productivity of plants and animals, which is essential for the food web.

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NGSS.MS-LS1-5

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How do estuaries help in flood control?

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Estuaries can absorb excess water during heavy rains, reducing the risk of flooding in surrounding areas.

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What is the role of estuaries in carbon sequestration?

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Estuaries can capture and store carbon dioxide, helping to mitigate climate change.

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NGSS.HS-ESS2-6