Answer: Heidi Doody. Heidi Doody was built by Margo Rose and had the voice of Norma MacMillan and Donna Miller. Heidi was introduced as a stranger who saved Buffalo Bob's life in Africa. Later, Heidi was adopted and became Howdy's sister.
The descending of rock layers at subduction zones causes metamorphism in two ways; the shearing effect of the plates sliding past each other causes the rocks coming in contact with the descending rocks to change. Some of the descending rock will melt because of this friction.
A2) Explain how subduction leads to volcanic activity. One of the plates will be pushed down by great pressure and temperatures so deep that the water from the subducting slab will begin to accumulate between both plates then eventually the plate will melt once the water lowers the temperature of the mantle. The magma then rises to the surface to produce a linear belt of volcanoes.