Use the drop-down menus to match each description with the appropriate change of state. piles of snow turn to puddles of water. puddles of water gradually dry up. frost builds up on a window

Piles of snow turn to puddles of water. melting

Puddles of water gradually dry up. evaporation

Frost builds up on a window. deposition

melting

evaporation

deposition

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.