Which statement is best supported by the table?
wave w and y are light waves, wave z is a sound
waves, and it is impossible to tell what kind of wave
wave x is.
wave w is a light wave, waves x and y are sound
waves, and it is impossible to tell what kind of wave
wave zis.
waves w and z are sound waves, and waves x and y
are light waves
wave w is a sound wave, waves x and y are light
waves, and it is impossible to tell what kind of wave
wave zis.

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.

the answer is option a.