NEET BIOLOGY

Detailed explanation-1: -Estuaries are very productive ecosystems because they constantly receive fresh nutrients from the river and from the ocean. The surrounding land, such as the mainland or a peninsula, protects estuaries from the harsh force of ocean waves.

Detailed explanation-2: -Despite these challenges, estuaries are also very productive ecosystems. They receive nutrients from both bodies of water and can support a variety of life. Because of their access to food, water, and shipping routes, people often live near estuaries and can impact the health of the ecosystem.

Detailed explanation-3: -Estuaries are one of the most productive ecosystems on earth. They maintain water quality through natural filtration as microbes break down organic matter and sediments bind pollutants. Wetlands that fringe many estuaries also have other valuable functions.

Detailed explanation-4: -Estuaries and their surrounding wetlands filter out pollutants such herbicides, pesticides, heavy metals and excess nutrients and sediments. For this reason, estuaries comprise one of the most fertile ecosystems, but also have the potential be the most polluted.

Detailed explanation-5: -Estuaries are such rich habitats for organisms because they have nutrients coming in both from the river and from the ocean. The river deposits sediment and nutrients into the estuary, and the mixture of salt and fresh water allows more varieties of nutrients than in many habitats.