Dolphin's blow holes produce

Dolphins' blowholes produce a spout of air and water vapor when they exhale. This is a result of the air being expelled from their lungs through the blowhole, which is located on the top of their heads. The spout can be seen when dolphins surface to breathe, and it can vary in height depending on the species and the force of the exhalation. This adaptation allows them to breathe efficiently while swimming.