A student wants to examine a substance without changing its identity. Which of the following properties of the substance should the student examine?

beta decay is the answer

i believe that it is a exoplanet

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.