In Marine Sediments, CO₂ Is Reduced to CH₄ By

question 43

Multiple Choice

In marine sediments, CO₂ is reduced to CH₄ by:

• A) bacteria containing proteorhodopsin
• B) oxygenic cyanobacteria
• C) methanotrophic archaea
• D) methanogenic archaea
• E) none of the above

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Definitions:

Population Variances

A statistical measure of the dispersion of data points in a population, indicating how much the values differ from the mean.

Confidence Interval

An array of numerical indicators, gleaned from sample statistics, anticipated to harbor the value of an unknown population attribute.

Sample Size

The number of observations or replicates included in a statistical sample, crucial for the validity and accuracy of an experiment.

Degrees of Freedom

The number of independent values or quantities that can vary in the analysis without violating any constraints.