The science of observing and forecasting weather conditions is called
a. biology
b. meteorology
c. mythology
d. paleontology

 b. meteorology

The science of observing and forecasting weather conditions is called meteorology.

Explanation:

Meteorology refers to the science of the atmosphere which focuses on weather processes and forecasting. It deals with the physical, dynamical and chemical state of the earth's atmosphere and with the interplay between the earth's atmosphere and the fundamental surface.

Meteorologists are people who study the atmosphere. They study the atmosphere with the use of scientific principles in order to explain, understand, observe and forecast the earth's atmospheric phenomena.

answer; they use longitude and latitude and   global grid system; good luck