4 Convection is the internal energy transfer that drives volcanic activity. During convection,
A. Earth's interior is heated by radioactive decay.
B. hot materials in Earth's interior move toward
Earth's surface.
C. the materials inside Earth are heated by
gravitational contraction.
D. the sun warms Earth's surface, making its
interior warm.

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.)