विषाक्त धारा किसे कहते हैं
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Toxic Substances Control Act
The Toxic Substances Control Act (TSCA) is a United States law, passed by the United States Congress in 1976 and administered by the United States Environmental Protection Agency, that regulates the introduction of new or already existing chemicals.
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kisi chalak me prti ikai me jane wala dhara ko vidyut dhara kahte hai
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