Why is sugar sticky and how does it affect its texture and properties?

Sugar is sticky because it is hygroscopic, meaning it attracts and holds onto moisture from the air. This moisture causes sugar to clump together and stick to surfaces. The stickiness of sugar affects its texture by making it more cohesive and prone to clumping. It also affects its properties by influencing how it dissolves in liquids and how it interacts with other ingredients in recipes.