What is the difference between arco and pizzicato?

Arco and pizzicato are two different techniques used in string instrument playing. "Arco" refers to playing with a bow, where the musician draws the bow across the strings to produce sound. In contrast, "pizzicato" involves plucking the strings with the fingers, creating a distinct, percussive sound. These techniques can be used interchangeably in compositions to create varied textures and effects.