News tagged with sea urchins

Sea urchins cope with rising CO2 levels

(Phys.org) —Increasing levels of carbon dioxide (CO2) in the atmosphere are causing oceans to become more acidic. This situation poses a threat to marine organisms with shells made of calcium carbonate, because acid will ...

dateApr 09, 2013 in Plants & Animals report
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A crystal clear view of chalk formation

(PhysOrg.com) -- It has a beautiful, but also an unpleasant side: crystallization determines the shape of precious stones, but also causes the lime scale in washing machines. How this comes about, has been known for a long ...

dateJan 23, 2009 in Condensed Matter
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