Everyday Science MCQs
Q speed of sound in dry air at 20 °C is___________?
  • A A. 353 m/s
  • B B. 345 m/s
  • C C. 343 m/s
  • D D. None of them
Previous Sound travels about ___________times faster in water th…
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15 Jul
Iterate
perform or utter repeatedly.
دہرانا، چکر

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