Question

the time duration for singing or playing on national anthem is ? seconds​

Answer 1

Answer:

52 sec

Step-by-step explanation:

pls make as brainliest

Answer 2

Step-by-step explanation:

Answer

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Thomas Alva Edison was widely known as America's most prolific inventor, even after his death in 1931. He held a total of 1,093 U.S. patents (1,084 utility patents and 9 design patents). In 2003, his patent count was exceeded by Japanese inventor Shunpei Yamazaki.