Which of the following is an example of a population? a. all plants and animals in grand canyon national park b. all of the trees in yellowstone national park c. all of the western diamondback rattlesnakes in big bend national park d. all leopard frogs in the world

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.

c) up

hope this