Which of these describes how heat transferred by convection?
a. warm air rises and takes heat with it; eventually it cools and sinks
b. air molecules touch the warm ground, heating it up
c. land and ocean absorb and re-emit heat from the sun
d. sunlight travels through space without the aid of fluids or solids

9. which of these are considered standard precautions for dealing with bodily fluids? check all that apply wearing gloves when providing patient care that may involve contact with blood checking a patient's chart to determine if there is a harmful blood disorder wearing aprons, masks, and protective eyewear when needed transporting a patient from a bed to a wheelchair to take him or her to a procedure washing hands when required cleaning equipment thoroughly before using it on the next patient