Aperson who uses observations on atmospheric conditions to make prediction about the weather is a(n) a. weatherist c. climatologist b. meteorologist d. precipitologist  

A person who uses observations on atmospheric conditions to make prediction about the weather is a meteorologist.

A person who uses scientific methods to study, observe or forecast atmospheric patterns and weather events is known as a meteorologist. The overall activities of a meteorologist are usually classified into a number of specialized areas such as air pollution, global climate modeling, hydro-meteorology and numerical analysis and beside weather forecasting.

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.