2deg, seldom up to - 3deg -0deg10' to -1deg20' +24deg0' to +41 deg + 16deg30' -1deg0' to - 2deg 10' i deg36' to 0deg40' solubility characteristics soluble in 1-2 vols and more of 70% alcohol, occasionally with opalescence to turbidity on dilution soluble in 1-2 vols of 70% alcohol freshly distilled oils...
, used to detect risks to humans by providing advance warning of a danger. the terms primarily apply in the context of environmental hazards rather than those from other sources. some animals can act as sentinels because they may be more susceptible or have greater exposure to a particular hazard than...