Why does cool rock material sink when convection takes place in the mantle

Name 5 inland waterways of australia

What was the most difficult obstacle to overcome in the creation of an autonomous state after indian independence was achieved? a british willingness to go to war to retain the region b. religious differences between hindus and muslims c. ethnic differences between tribal regions d. indian princes' inability to decide on a format of government

What term is given to the border between the central alps and the southern limestone alps?