The iron-sulfur world hypothesis suggests that organic molecules formed near:

A) volcanoes.
B) sulfur pools.
C) pools of water.
D) hydrothermal vents.
E) low atmosphere clouds.

Iron-Sulfur World

A theory regarding the origin of life on Earth, suggesting that life began at hydrothermal vents, where iron and sulfur compounds provided the energy and catalytic surfaces for the synthesis of organic molecules.

Hydrothermal Vents

Fissures in the deep ocean floor that release hot water and inorganic compounds.

Organic Molecules

Chemical compounds that contain carbon and are found in all living organisms, essential for life.