Fundamental Theory of on the Origin of Species
This page is the CodyCross answer for the clue below from Taking Care of Our Planet, Group 1576, Puzzle 1 (Greenhouse Gas).
Question is: Fundamental Theory of on the Origin of Species
and the answer is: DARWINISM
Word Meaning:
DARWINISM — Alternative letter-case form of Darwinism.
Definitions from Wiktionary.