Answer:
The history of GIS all started in 1854. Cholera hit the city of London, England. British physician John Snow began mapping outbreak locations, roads, property boundaries, and water lines.
John Snow’s Cholera map was a major event connecting geography and public health safety. Not only was this the beginning of spatial analysis, but it also marked the start of a whole field of study: Epidemiology – the study of the spread of disease.
To this date, John Snow is known as the father of epidemiology. The work of John Snow demonstrated that GIS is a problem-solving tool. He put geographic layers on a paper map and made a life-saving discovery.
Explanation:
Answer:
Zebra mussels are spread from one body of water to another by natural flow, carried on the feathers or feet of birds, or by humans in bait buckets or on boats.
<span>The pearl producing species is called mollusks. It is considered to be the earliest form of animal life and the second largest phylum in the animal kingdom. The ones responsible for the production of pearls is the conchiferra, a type of subphyla. </span>
The answer is CNS depression.
Reduced activity in the brain can be caused by chemical agents such as opioids, ethanol,
benzodiazepines, ethanol, and anticonvulsants. Metabolic issues such as hypoglycemia can also cause CNS depression or
accidental inhalation of chemicals such as isopropyl alcohol, or butanol.
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