The Russian chemist Oparin suggested that for organic molecules to form on Earth,the atmosphere was probably rich in all of these except
A) oxygen.
B) water.
C) ammonia.
D) methane.
E) hydrogen.

Question

The Russian chemist Oparin suggested that for organic molecules to form on Earth,the atmosphere was probably rich in all of these except 
A) oxygen.
B) water.
C) ammonia.
D) methane.
E) hydrogen.

Quizplus · Accepted Answer

It is thought that the atmosphere of the early Earth was a reducing one, and thus lacking in any significant amount of oxygen.

The Russian Chemist Oparin Suggested That for Organic Molecules to Form