Oil slick from the Montara oil spill in the Timor Sea, September 2009. An oil spill is the release of a liquid petroleum hydrocarbon into the environment, especially marine areas, due to human activity, and is a form of pollution.The term is usually applied to marine oil spills, where oil is released into the ocean or coastal waters, but spills may also occur on land.il slick from the Montara oil spill in the Timor Sea, September 2009. An oil spill is the release of a liquid petroleum hydrocarbon into the environment, especially marine areas, due to human activity, and is a form of pollution.
kin - group of people related by blood or marriage. clan, kin group, kindred, kinship group, tribe. social group - people sharing some social relation. mishpachah, mishpocha - (Yiddish) the entire family network of relatives by blood or marriage (and sometimes close friends); she invited the whole mishpocha.
Blood type (or blood group) is determined, in part, by the ABO blood group antigens present on red blood cells. A blood type (also called a blood group) is a classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells (RBCs).These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system.Some of these antigens are also present on the surface of other types of cells of various tissues.Several of these red blood cell surface antigens can stem from one allele (or an alternative version of a gene) and collectively form a blood group system.hese antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system. Some of these antigens are also present on the surface of other types of cells of various tissues.