Respuesta :
Answer:
Granitic rock in the ocean floor was not included in the support for Harry Hess's hypothesis of sea-floor spreading.
Explanation:
- Separation of the ocean floor which leads to the expansion of the ocean is called as sea-floor spreading.
- By this process there is formation of oceanic crust that are formed by volcanic activity along with the mid-oceanic ridge.
- Rock are basaltic and dense in nature. By this theory, it is suggested that the rock which are present near the mid-oceanic ridge are younger and the rock which are far from them are older than them.
- Plate tectonic movement is the cause for the sea-floor spreading.
