SCIENCE
ENVIRONMENTAL SCIENCES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
both provide habitats for wildlife
|
|
|
both are dominated by marsh grasses
|
|
|
both are found along coastal areas
|
|
|
both are threatened by development
|
Detailed explanation-1: -Salt marshes and mangrove forests are common coastal wetland habitats that have different climatic tolerances. In warmer climates, mangrove trees outcompete salt marsh grasses. Salt marshes are dominant along colder coastlines where mangrove forests are damaged by freeze events.
Detailed explanation-2: -Saltmarshes and mangroves are wetlands formed in the intertidal zone of sheltered coasts, notably in bays, lagoons and estuaries. The vegetation of the two environments is quite different: mangroves are composed of a number of tree species, while saltmarshes are dominated by grasses and herbs.
Detailed explanation-3: -Salt marshes are coastal wetlands that are flooded and drained by salt water brought in by the tides. They are marshy because the soil may be composed of deep mud and peat. Peat is made of decomposing plant matter that is often several feet thick.
Detailed explanation-4: -Both mangroves and salt marshes occur over a narrow elevation range spanning mean high water and their continued existence requires that their surface elevation increase in step with sea level rise. Accumulation of both mineral and organic sediments is important to this process of vertical soil accretion.