Which of these is most likely to contain information based on empirical evidence?

What creates an electric force field that moves electrons through a circuit? a. energy sourceb. loadc. metal wiresd. resistance

Which of the following does not cause blindness? a. cataractsb. glaucomac. osteoarthritisd. diabetes

The physician ordered velosef (cephradine) im 50 mg/kg/day in equally divided doses four times a day for a child who weighs 40 pounds. convert pounds to kilograms and then calculate the prescribed dosage. mg every hours