1 goes to the bottom so the water on the surface of the earth is the hydrosphere 1 to d, and then 2 goes to the 2 option electrolyte so 2 to B and then 3 goes to the top option so a process used by plants is photosynthesis so 3 to A and then 4 goes to C a process used to make from water from saline is desalination so to recap
1 to D, 2 to B, 3 to A and 4 to C
The breathing rate is the dependent variable because it can be affected by varying weights.
P.S the answer was on quizlet
Light is the energy source in Photosynthesis!
Hope this helped!