A commercial on television advertises a new medicine to boost immunity. Which source is least likely to provide accurate information? a popular culture magazine
the studies that the television ad cites
a brochure from the doctor’s office
the Food and Drug Administration’s website

Contact --  Close to a hot spot

Regional  -- At deep subduction areas.

Dynamic  --   Along a transform  boundary

Impact  --  Near a crater

Explanation:

Contact metamorphism occurs close to the igneous intrusions and is resultant wot a high temperature and only a small surrounding area is heated by the magma and is restricted to zones surrounding the intrusion. The regional metamorphism is large scale metamorphism and is due to the convergence of the continental crust along the tectonic margins. The dynamic metamorphism are associated with the zones of moderate stains fault zones. The impact of metamerism is a result of the heat and high pressure and this can lead to the high pressure within rocks.