Do mechanical waves transfer light energy?
a. yes
b. no

do electromagnetic waves transfer light energy?
a. yes
b. no

do mechanical waves transfer sound energy?
a. yes
b. no

do electromagnetic waves transfer sound energy?
a. yes
b. no

you so much < 3

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.