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Astronomers have confirmed the grand unified theory by observing that protons decay in laboratory experiments.
Farming Classes
Social or economic groups within a community or society that primarily engage in agricultural production and activities.
Ancient Egypt
An early civilization that arose along the Nile River, noted for its innovations in writing, agriculture, urbanization, and its iconic monuments like the Pyramids and Sphinx.
Sexual Involvement
Engagement in sexual activities or relationships, which can be influenced by cultural, social, and individual factors.
Known Societies
refers to human communities that are recognized and have been studied, including their cultural, economic, social, and political aspects.
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Q35: Hubble's constant, <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4068/.jpg" alt="Hubble's constant,
Q39: Black holes emit no light whatsoever.
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Q62: Which of the following accounts appears in