11. what is physical evidena?

Physical evidence or the real evidence are "material objects having a big impact on a legal case." Physical evidence can be like guns, knifes, drugs, weapons, etc... Anything material having a impact in a legal case is psychical evidence.

Hope this helps.

Physical evidence refers to any item that comes from a nonliving origin, while biological evidence always originates from a living being. The most important kinds of physical evidence are fingerprints, tire marks, footprints, fibers , paint, and building materials

no i don't think so.