Which evidence is most likely used to indicate the beginning of solar system formation? A. Materials combined to form a mass.
B. Materials were pulled together by gravity.
C. Water condensed and collected to form oceans.
D. Different species of microorganisms lived on Earth.

Plz ! ive been stuck on this forever

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment

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.)