Answer:
points of equal temperature
Step-by-step explanation:
The isotherms are closed circular lines that connect dots where the temperature has same value. These lines are very easy to read and they are very useful when it comes to reading a map that has them on, as they will provide us with the information about the temperature. The isotherms are often used in the weather programs and meteorological prognosis, so we pretty much see them every day, but unfortunately the majority of the people do not know what they are and what are they representing.