The early 21st century may someday be looked upon as a pivotal point in the Earth's history. At its most dramatic, this era might someday be thought of as the beginning of the end. The present decade marks a milestone in which the majority of people in industrialized nations and a large portion of people in the developing world are now feeling the effects of too many humans, too much waste, and the disappearance of plant and animal species faster than at any other time in history.
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What's an Audio Format Audio format refers to the way an audiobook is recorded. Not all audiobooks have the same formats. Classic Audio: A human reading an audiobook without the text displayed. VOICEtext (H): Human narrator with text that you can follow along with as it reads. VOICEtext (S): Synthetic voice with text you can follow along with as it reads.
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