The ph level of tomato juice is 4.2. what is the hydrogen-ion concentration [h+] for tomato juice? a. 0.0004 b. 0.0006 c. 0.4 d. 0.6

An experiment is conducted to see if cats preferred skim milk or 2% milk. a cup of skim milkwas put out for 5 kittens and then measured how much the kittens drank over the course of aday. following a cup of 2% milk was purout for the skittens and then masured how much thekittens drank over the course of a day. the same kittens were used and the milk was served atthe same temperature. it was discovered that the cats liked the 2% milk more than the skimmilk. what is the dependent variable in this experiment?