Tag Archives: PH

Environment News: Coral Reefs


Coral Reefs

A coral reef is a ridge of living coral, coral skeletons, and calcium carbonate deposits from organisms such as calcareous algae, mollusks, and protozoans. The resulting structure provides a critical habitat for a wide variety of fish and marine invertebrates. Coral reefs also protect shores against erosion by causing large waves to break and lose some of their force before reaching land. More than 90% of the estimated 109,800 sq mi (284,300 sq km) of reefs in the world are in what region? More… Discuss

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WORD: CALCAREOUS


calcareous 

Definition: (adjective) Of, containing, or resembling calcium carbonate.
Synonyms: chalky
Usage: Immense accumulations of bird-guano gave the sides of Mount Mendif the appearance of calcareous rocks. Discuss.

 

EXTREMOPHILES


Extremophiles

Extremophiles are microorganisms that thrive in environments with extreme conditions, such as high or low temperatures or pH levels, high salt concentration, or high pressure. Found in hydrothermal vents on the ocean floor, they produce the vivid colors of some hot springs. Due to extremophiles’ ability to thrive in conditions detrimental to most life on Earth, some scientists theorize that they may reflect what life may be like on other planets. How are extremophiles used industrially? More… Discuss