1. Mangrove Unit Vocabulary

2. the wide part of a river where it nears the sea; fresh and salt water mix Estuaries Amazon River Estuary reaching the Atlantic Ocean

3. Estuaries • Fresh water meets salt water • Of the 32 largest cities in the world, 22 are located on estuaries.[12] For example, New York City is located at the orifice of the Hudson River estuary.[13] • As ecosystems, estuaries are under threat from human activities such as pollution and overfishing. They are also threatened by sewage, coastal settlement, land clearance and much more. • Estuaries are affected by things that happen further up the river. • Materials such as pollutants and sediments and domestic waste enter rivers and are discharged into estuaries. • Contaminants can be introduced which do not disintegrate rapidly such asplastics, pesticides, furans, dioxins,phenols and  heavy metals.

4. Ecosystem ecosystem: a place where living and nonliving things exist and interact with each other.

5. Habitat habitat: a place where an organism lives

6. Organisms Upside Down Jellyfish Proboscis Monkey organism: a living thing, such as a plant or animal Hornbill

7. Strong roots protect from Tsunamis Adaptations adaptation: a behavior or body part of a living thing that helps it survive Ability to excrete salt crystals Propagules

8. Community • community: a group of plants and animals that live in the same area and interact with each other

9. Population • population: all the organisms of the same kind that live together in an ecosystem