Who suggested that the origin of life must have been from simple inorganic substances?

Correct option is C

The correct answer is (C) JBS Haldane.

Explanation:
JBS Haldane suggested that life originated from simple inorganic substances, forming complex molecules over time in the primordial environment.

Incorrect Options Explanations:

• (A) Stanley L Miller: Conducted experiments on the synthesis of organic compounds, but did not propose the origin of life from inorganic substances.
• (B) Charles Darwin: Proposed the theory of evolution, not the origin of life.
• (D) Gregor Mendel: Known for his work in genetics, not the origin of life.

Information Booster:

• JBS Haldane: Proposed life began in a "primordial soup" of simple chemicals.
• Miller's Experiment: Demonstrated organic compounds could form from inorganic substances.
• Primordial Soup: Theory that early Earth’s atmosphere enabled complex molecules to form from basic chemicals.