The First Bacteria Probably Used______ Instead of Water as a Source

question 81

Multiple Choice

The first bacteria probably used______ instead of water as a source of hydrogen.

• A) HCl
• B) OH^{- 1}
• C) H₂SO₄
• D) H₂S
• E) Fe₃O₄^.OH

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Definitions:

Cross-Sectional Study

A type of observational study that analyzes data from a population, or a representative subset, at a specific point in time.

Different Age Groups

Categories of individuals segmented by their age, often used for demographic, marketing, and social research purposes to identify and analyze behavioral patterns.

Greatest Probability

Refers to the highest chance or likelihood of a particular event or outcome occurring.

Same Sex

Pertaining to a relationship or attraction between two individuals of the same gender.