The Most Abundant Element
This page is the CodyCross answer for the clue below from Mesopotamia, Group 978, Puzzle 1 (Bronze Age Collapse).
Question is: The Most Abundant Element
and the answer is: HYDROGEN
Word Meaning:
HYDROGEN — (uncountable) The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.008.
Definitions from Wiktionary.