Dimethylmercury ((CH3)2Hg) is an organomercury compound. This colorless liquid is one of the strongest known neurotoxins. It is described as having a slightly sweet smell, although inhaling enough vapor to detect its odor would be hazardous.
The formation of a star begins with gravitational instability within a molecular cloud, caused by regions of higher density-often triggered by shock-waves from nearby supernovae (massive stellar explosions), the collision of different molecular clouds, or the collision of galaxies (as in a starburst galaxy).
1.Contraction of respiratory muscles causes â thoracic volume, â lung volume, âlung recoil 2. Pleural pressure decreases toward -8 cm HâO, causing alveoli to inflate 3. Increasing alveolar volume decreases aveolar pressure to -1 cm HâO 4. Alveolar pressure is now less than barometric pressure and air flows into the lung 5.