When Does an Avalanche Occur?
When Does an Avalanche Occur? An avalanche occurs when a mass of snow which has built up on a mountainside begins to slip and finally to fall. There can also be...
Read MoreWhen Does an Avalanche Occur? An avalanche occurs when a mass of snow which has built up on a mountainside begins to slip and finally to fall. There can also be...
Read MoreWhen Does a Firestorm Occur? A firestorm occurs when flames from a large number of individual fires merge into a single convective, or circulatory, column. This...
Read MoreWhen Is War Said to Escalate? War is said to escalate when it increases rapidly in scale or intensity. The word was added to the military vocabulary by the Americans...
Read MoreWhere Is Pompeii? For nearly 1,700 years Pompeii in southern Italy was a dead and buried city, forgotten by all except historians. But for more than 600 years before...
Read MoreWhy Is Milk Pasteurized? Milk is an excellent medium for microbial growth, and when stored at ambient temperature bacteria and other pathogens soon proliferate. Milk is...
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