Answer:
question #17- B)coral island
Explanation:
i'm not sure what #16 is though
Back then , the city was shocked by smallpox epidemic. Since smallpox is easily transmitted by contact, overcrowded areas are the perfect breeding spot for smallpox ( they still has not developed small pox vaccine back then)
Answer:
Option C
Explanation:
After the completion of the railways, there was a big problem facing this sector, there was a disparity in time across the country; time was locally determined by some local solar time frame which were different from one locality to another. To tackle this issue,there need to be some sort of standard time. if not, there is no way to predict when moving passengers and freight,train will arrive; so some sort of coordinate to follow so that things work out right in determine and predicting schedules is needed.
In order to make their schedules more standard, the railroads divided the United States into time zones( the time zone was divided into four standard time zone)
The division of the United States into Standard time zones was first done by the railroads to end the confusion of dealing with thousands of local times.
A literacy rate is a percentage of people who are able to write compared to the people who don't know how to.
Answer:
I believe metamorphic rock.
Explanation:
( sorry if you get the answer wrong)