Question

name and two contributions of the 20th century
Answer this​

Answer 1

Answer:

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.