What is the difference between 2d and 3d drawings?

2D drawings are flat representations of objects or scenes, typically created on a plane with height and width dimensions only. They lack depth perception and appear as if they were viewed from directly above. 3D drawings, on the other hand, include depth in addition to height and width, creating a more realistic and immersive representation of objects or scenes. 3D drawings are created using software that simulates three-dimensional space, allowing for a more accurate depiction of how objects would appear in reality.