Isotherm is a change in a system where the temperature remains constant and it is known as an isothermal process. Here, ΔT = 0. Isotherm, is line drawn on a map or chart joining points with the same temperature. Isotherms are commonly used on a chart indicating constant level.
Question : The line on a map connecting points of equal temperature at a given time is
Option 1: Isohyet
Option 2: Isobar
Option 3: Isthumus
Option 4: Isotherm
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