Flammable Liquid Used as Vehicle Fuel
This page is the CodyCross answer for the clue below from Forms of Communication, Group 2233, Puzzle 3 (Whistled Speech).
Question
Flammable Liquid Used as Vehicle Fuel
Answer
PETROLEUM
Word Meaning:
PETROLEUM — A flammable liquid ranging in color from clear to very dark brown and black, consisting mainly of hydrocarbons, occurring naturally in deposits under the Earth's surface.
Definitions from Wiktionary.