Apaper plane moving through the air experiences air
energy, which causes the temperature
frictioncsforces acting on an object are often converted into
of the object to rise slightly

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.

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.

explanation:

wheres the pic

answersysvol bloat;