The answer is synovial joints.
A synovial joint, also called diarthrosis, is present in the shoulders, hips, knees, elbows and wrist.
It has a fibrous joint capsule, a space between the bones that contains the synovial fluid and some of them can have additional structures.
There are six types of synovial joints and the shoulder or hip joints are called Ball and socket joints which allow all movements except gliding.
The answer will be c, angiosperm
It is a chemical property because the Silver’s chemical composition is altered when it tarnishes.
