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:

Which statement about bases is incorrect?
Answer:
Bases contain hydrogen ions Is the Correct Answer!
A base is a substance that accepts hydrogen ions. When a base is dissolved in water, the balance between hydrogen ions and hydroxide ions shifts the opposite way.
Hope this helps!

I believe it gives you the answer. It should be one fifth or 20%. #TeamAlvaxic
1005milibars of pressure corresponds to 29.68inches of mercury.
Option D.
<h3><u>Explanation:</u></h3>
Mercury has a density of around 13.6gm/cc. Thus the pressure of inches of mercury will have a huge effect on the value. As far as bar is concerned, it's around the normal atmospheric pressure measured at sea level. Its around 1,00,000 pascals. So from converting a pressure at millibars to inches of mercury, we need to divide the value by a factor of 33.864.
So, pressure in milibars =1005milibars.
So, pressure in inches of mercury = 1005/33.864 = 29.68 inches of mercury.