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Featured Article: Salt marsh

An Atlantic coastal salt marsh in Connecticut

A salt marsh, or saltmarsh, is a type of marsh (itself a type of wetland) that is characterized by being frequently or continuously flooded by relatively shallow, high salinity water and that is dominated by halophytic (salt tolerant) herbaceous plants. It is distinguished from brackish marshes and freshwater marshes by having a higher level of salinity. Salt marshes are one of the most biologically productive habitats on the planet. They also slow erosion along the shoreline, buffer stormy seas, and help to filter out pollutants before they enter oceans and estuaries.

Popular Article: Room temperature

Mercury-in-glass thermometer for measurement of room temperature. Celsius scale

Room temperature (also referred to as ambient temperature) is a common term to denote a certain temperature within enclosed space to which human beings are accustomed. Room temperature is thus often indicated by general human comfort, with the common range of 18°C (64°F) to 23°C (73°F), though differences in climate may acclimate people to higher or lower temperatures—for instance, 78°F could be a common temperature for some people.

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The Great Rift Valley is such a significant physical feature on the earth that it is clearly visible from space (source: Great Rift Valley)

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