Why do some craters have different sizes?

Craters vary in size due to several factors, including the size, speed, and angle of the impacting object, as well as the type of surface it strikes. Larger and faster impacts create more significant craters, while softer or more fractured surfaces can result in larger or more irregular shapes. Additionally, geological processes, such as erosion or volcanic activity, can alter or even erase craters over time, leading to further size variations.