Question

e-cigarettes are electronic devices that heat a liquid and produce a(n)_______, or mix of small particles in the air

aerosol

nicotine

spray

liquid

Explanation:

The question describes e-cigarettes heating liquid to produce a mix of small particles in air. Aerosol is defined as fine solid or liquid particles suspended in gas, matching the description. Nicotine is a component of the liquid, not the produced particles; spray is a method of dispersion, not the particle-gas mixture; liquid is the starting material, not the result.

Answer:

A. aerosol