Test # 145

They're trying very hard to finish in time and they're working ________ the clock.

Login/Register to access massive collection of FREE questions and answers.

  • Cartoons Characters That You Wish Were Real
  • Weird Country Names
  • Surprising Health Benefits Of Tea
  • Top Fastest Bikes in the world
  • Barack Obama
  • Cool Inventions

  • Fastest Things Known To Man

    Fastest Tornado

    Technically when we say fastest tornado we are referring to the wind speed, not forward motion. With that said, the fastest wind speed on record was measured in an F5 tornado near Oklahoma City in 1999. The speeds exceeded 300 mph (484 km/h). On the Fujita scale this means it was barely scraping an F6 and no tornado has ever been classified as an F6.

    Chourishi Systems