Which of the following observations represent conclusive evidence of an interaction?.

Anna’s mother prepares sauerkraut, a fermented dish made from finely cut cabbage and salt. lactobacillus bacteria present on the surface of the cabbage combine with salt to turn the cabbage into a crunchy, sour dish. what chemical process occurs to create this dish? a. alcoholic fermentation b. cellular respiration c. conservation d. lactic acid fermentation e. photosynthesis

It takes longer to fly an airplane against a with it

During a load test, a battery's voltage drops below a specified value. what action should the technician take?