A meteorologist is person who applies scientific principles to explain and forecast the changes occurring in an Earth's atmosphere.They use weather service maps, data from instruments and personal observations.
Meteorologists are person specialized to use scientific principal to forecast Earth's atmosphere.
The key difference between meteorologists and weatherman is that meteorologists work in offices and research environments and involved in collecting and analyzing weather data.
A weatherman reports weather conditions, alerts, and forecasts on live television.
Meteorologists also find out the way of changes in the Earth's atmosphere affecting the climate and the life of the organisms.
Meteorologists are able to predict the changes in the atmosphere by weather service maps, data from the instruments and from the personal observations.
Thus, the correct options are weather service maps, data from the instruments and from the personal observations.
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