Fill in the blank (1 point each): 1. the upper mantle and crust together form the 2. the is part of the mantle where the rock is almost at its melting point and flows under pressure. 3. the transfer of heat by the circulation or movement of the heated parts of a liquid or gas is known as 4. the name of the supercontinent proposed by alfred wegener in his theory of continental drift: 5. list two of the three types of evidence supporting wegener’s theory of continental drift (1 point per answer):