How do estuaries act as a filter to remove toxins from an environment

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Explanation:

Ecosystem Services. Many estuarine habitats filter pollutants such as herbicides, pesticides, and heavy metals out of the water flowing through them. ... One reason that estuaries are such productive ecosystems is that the water filtering through them brings in nutrients from the surrounding watershed.

Estuary inhabits salt marshes and mangrove forest which helps in filtering toxins from the environment

Explanation: Estuary is a semi-enclosed body of water connected to both sea and river. They are coastal body in which salt water from ocean mixes with fresh water from river.

Estuary helps in filtering toxins like carbon dioxide, heavy metals and herbicides out of the environment. These are pollutants as a result of anthropogenic activities (human activities).

Estuary inhabits salt marshes and mangrove forests which helps in the filtration.

Mangrove forests are good carbon scrubbers (they help in removing excessive carbon dioxide from the atmosphere) while salt marshes have peat and mud which absorb the heavy metals, herbicides and pesticides from the water flowing through them.

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