1.

Read the following statements carefully:1.Scientists have invented a vacuum-assisted toilet that is about half as loud as the regular airplane commode.2.It took researchers at the Brigham Young University (BYU) in the US two years of trial and error, three academic publications and thousands of flushes to figure out how to make toilets quieter.3.An air-water mix in vacuum-assisted toilets travels more than 483 kilometres per hour.Which of the above statements is/are correct?

A. Only 1
B. Only 1 and 2
C. Only 1 and 3
D. Only 2 and 3
E. All are correct
Answer» F.


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