A chemical equation equation is a brief equation of a chemical reaction it can express a chemical reaction in a single line it can give us information about the elements or co â¦ mpounds which are reacting or decomposing it also tells us about the states of reactants and the product
an obstacle on a golf course, as a sand trap or pond; Court Tennis any of the three openings on the side (hazard side) of the court in which service is received; Origin of hazard. Middle English from Old French hasard, game of dice, adventure from uncertain or unknown; perhaps Arabic az-zahr, for Egyptian colloquial Arabic al-zahr, dice
Cover-Collapse Sinkholes. A geologic hazard is a naturally occurring geologic condition that may result in property damage or may be a threat to the safety of people. The geologic hazards associated with karst are: sinkhole flooding, groundwater vulnerability, radon, and cover-collapse sinkholes described on this page.