The Modern Atmosphere, with the Amount of Oxygen That Exists

question 147

True/False

The modern atmosphere, with the amount of oxygen that exists today, developed as early as 600 million years ago.

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Definitions:

Redundant Expression

The use of words or phrases that repeat the same meaning unnecessarily.

Grammatical Mistake

An error in the usage of language rules that affects the correctness of speech or writing.

Proofreading Error

A mistake made during the process of reviewing and correcting written material before it is finalized or published.

Spell Check

A tool or feature that identifies and corrects misspellings in text, improving the accuracy and readability of written material.