Which type of wave is known for its ability to heat substances, such as food?

Infrared waves are known for their ability to heat substances, including food. This occurs because infrared radiation is typically absorbed by molecules in materials, causing them to vibrate and generate heat. This property is utilized in various applications, such as microwave ovens and heaters, where infrared energy effectively transfers heat to the food or objects being warmed.

Visible waves, although part of the electromagnetic spectrum, do not have the same heating capability as infrared waves. They are primarily responsible for enabling us to see colors but do not significantly affect the temperature of an object when exposed.

X-rays and gamma rays are forms of high-energy radiation, primarily used for imaging and medical treatments. They can penetrate materials and are more associated with ionizing radiation, which can cause damage to biological tissues rather than heating effects. Therefore, they aren't suitable for heating substances like food.