Please help with biology:)

Which of the following is a way that minerals are used? a. industry construction technology d. all of the above

If animal agriculture was eliminated, how much grain would become available for human consumption?

Anurse is preparing to administer ampicillin 500 mg in 50 ml of dextrose 5% in water (d5w) to infuse over 15 min. the drop factor of the manual iv tubing is 10 gtt/ml. the nurse should set the manual iv infusion to deliver how many gtt/min? (round the answer to the nearest whole number. use a leading zero if it applies. do not use a trailing zero.)