Volcanoes often form belts along plate boundaries. How does the piece of art illustrate that this statement holds true for North America? explain.

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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.

double the distance = divide strength by 4

a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid