Sentences with phrase «presence of sulfur»

This played an important role as the injection of volcanic material was so large in the Toba eruption that some chemical processes saturated, leading to a longer presence of sulfur - containing particles in the stratosphere.
The presence of sulfur could indicate a leak and a faulty emission treatment system.
In addition, the unusually large numbers of sulfur compounds in kale have been shown to help support aspects of Phase II detoxification that require the presence of sulfur.
The reason for this: the presence of sulfur - oxidizing bacteria as a food source either directly or through a kind of cooperative «agreement» between the bacteria and a particular vent organism.
The presence of sulfur and sulfuric acid, however, may have also been present on the early Earth and is compatible with many extreme environments where bacteria have evolved biochemical processes to extract energy without sunlight (e.g., to extract energy from the charged reactions of sulfuric acid).
Messengerwill also be looking for the presence of sulfur on the surface.

Not exact matches

Revelation 14 even says that «They will be tormented with burning sulfur in the presence of the holy angels and of the Lamb.»
The presence of oxygen, added by the pore - inducing potassium hydroxide, was far more relevant to the results than either nitrogen or sulfur, they found.
In the presence of UV light, the solution went from violet to red, indicating that the iron and sulfur were reacting.
The cores of both Mercury and Earth contain light elements such as sulfur, in addition to iron; the presence of these light elements keeps the cores from being completely solid and «powers the active magnetic field - generation processes,» Hao said.
The near - infrared mapping spectrometer on NASA's Galileo spacecraft found evidence of the presence of molecules made of oxygen, carbon, sulfur, hydrogen, and nitrogen on Europa, and a hint of the presence of a class of complex organic compounds called tholins which may be driven by pre-biotic processes (more).
The presence of ozone helps to explain the detection of hydroxyl (an unstable molecule of oxygen with a single atom of hydrogen) high in planet's atmosphere in 2008 (ESA news releases on ozone, sulfur dioxide, and hydroxyl; Lisa Grossman, New Scientist, October 6, 2011; and Montmessin et al, 2011).
The presence of vitamin C, sulfur and certain amino acids make broccoli a very good detoxifier.
The rise was fast enough, however, for the chemocline to reach the photic zone by the time of deposition of the lower part of Unit II, as indicated by the presence of biomarkers for photosynthetic green sulfur bacteria (Sinnighe Damsté et al., 1993; Repeta, 1993).
Even then, Kelley remembers the smell of sulfur from the refineries being a near constant presence, but people in the community did not discuss it.
25 21.3 Climate Changes Natural Processes That Change Climates Volcanic Eruptions • The presence of volcanic aerosols (ash, dust, and sulfur - based aerosols) in the air increases the amount of solar radiation that is reflected back into space.
• The presence of volcanic aerosols (ash, dust, and sulfur - based aerosols) in the air increases the amount of solar radiation that is reflected back into space.
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