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: i believe its evaportion not sure tho
Explanation:
Birds and mammals independently evolved four-chamber hearts
Answer:
25%
Explanation:
One out of 4 boxes will have a large B, 25 x 4 = 100, thus your answer is 25%.
