Plate __; Motion of Large Pieces of Earth's Shell
This page is the CodyCross answer for the clue below from Train Travel, Group 716, Puzzle 5 (Platform and Concourse).
Question is: Plate __; Motion of Large Pieces of Earth's Shell
and the answer is: TECTONICS
Word Meaning:
TECTONICS — (geology) The study of crustal plates and other large-scale structural features of the Earth.
Definitions from Wiktionary.