the test tube has air inside it.In the outer surface of the test tube is water.Due to the different media across the test tube surface the reflection of light occurs through the glass surface.Hence the test tube shines(behaves)like a mirror. Was this answer useful? Zaf. 12,624 Contributions.
Yoga fusion refers to any number of exercise routines that incorporate yoga into the regimen in some manner. This includes classes and workouts that directly use yoga postures in their sequencing to more abstract concepts, such as Yoga and Vino, which might involve taking a yoga class and then sampling wine afterward.
Interbody Fusion. An inter-body fusion technique removes the disc from between the vertebrae that will be fused together. The discs are then replaced with a bone spacer made of either metal or plastic. There are three main types of inter-body fusion techniques. The posterior lumbar interbody fusion (PLIF) technique is performed through an incision in the back (hence, the posterior position) and is usually done when either a single fusion of two vertebrae or a double fusion, which involves three vertebrae, is required.