A line drawn on a map to show places of equal temperature is known as?

A line drawn on a map to show places of equal temperature is known as an isotherm. An isotherm is a line on a map that connects points with the same temperature. It is used to show the distribution of temperature across a region, and can help to visualize patterns in temperature and identify areas with similar temperatures. Isotherms are commonly used in weather maps and climate studies to help understand the patterns of temperature and how they vary over time and across different regions. By looking at the location and shape of isotherms, scientists and meteorologists can gain valuable insights into the climate and weather patterns of a region.