Answer: As long as the twins are monozygotic (therefore, essentially genetically identical), the transplanted tissue is virtually never rejected. If tissues are transplanted from one area on an individual to another area on the same individual (e.g., a skin graft on a burn patient), it is known as an autograft.
Explanation:
Friction slows things down. For example when you are putting on breaks in a car the friction causes the car to stop because you are putting pressure on the shoe and drum.
Friction goes against applied force works against it causing the object motion to slow down.<span />
Natural disasters are really inevitable, no matter your location. Tommy could research and take the appropriate steps for an earthquake. Considering the severity of his fear, he could look into therapy or something to distract him from the thought of it.
Abuse? Torture? You have to explane it better.