Science, asked by moumitachoudhary74, 10 months ago

name and two contributions of the 20th century
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Answered by kumaratul91261
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A MASSIVE AMOUNT OF NEW TECHNOLOGIES WERE DEVELOPED IN THE 20 TH CENTURY TECHNOLOGIES SUCH AS ELECTRICITY , THE INCANDESCENT LIGHT BULB , THE AUTOMOBILE AND THE PHONOGRAPH FIRST DEVELOPED AT THE END OF 19 TH CENTURY WERE PERFECTED AND UNIVERSALY DEPLOYS.

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