Answer to Question 1
droplets
Rationale: A vector is an insect or animal that transmits an infection. Examples could be fleas, ticks, or mosquitoes. A hypodermic needle and an examination table are examples of fomites. Droplets are an example of airborne pathogens.
Answer to Question 2
kVp
Rationale: Kilovoltage affects the quality of the beam as the wavelengths of the energies are emitted.