Sentences with phrase «trace metals which»
«The chemicals released into streams from valley fills contain a variety of ions and trace metals which are toxic or debilitating for many organisms, which explains why biodiversity is reduced below valley fills,» says co-author Dr. Emily Bernhardt, of Duke University.
https://news.mongabay.com/ Not exact matches
They plan to explore what other traces of elements are present in the inclusions, as well as make measurements of the isotopic composition of some elements, which could reveal exactly how the metal forms and how it interacts with rocks in the mantle.
Chemists who last year made traces of metal - carbon cage clusters have now made several grams of the molecules, which they call «metcars».
Unfortunately, during the refining process, many valuable micro components, like sterols, tocopherols and trace metals, which are at the root of olive oil health claims, are also removed.
Tuna, being a bigger fish than most, tends to eat smaller fish in its habitat which in turn may contain traces of unhealthy metals, especially mercury.
Such «complete» vitamin - mineral supplements may be preferable to conventional supplements in which only purified metal salts are used as the sources of minerals and trace elements.
Heavy metals: Metallic elements, including those required for plant and animal nutrition, in trace concentration but which become toxic at higher concentrations.