Is the tail of a comet created by heated of the sun?

Yes, the tail of a comet is created by the heat of the Sun. As a comet approaches the Sun, its temperature rises, causing its ices to vaporize and release gas and dust. This process creates two tails: a gas tail that points directly away from the Sun and a dust tail that follows the comet's trajectory. The interaction between solar radiation and the comet's material results in this spectacular display.