Question

1. what is the analogy (comparison) that was used to describe the \cloud\ that comes off of an e-cigarette?

a. like steam from a kettle
b. like the droplets from hairspray
c. like gas fumes at a gas station
d. like smoke from a cigarette

1. the \cloud\ that comes off of an e-cigarette is considered a...

a. gas
b. vapor
c. smoke
d. aerosol

1. third hand smoke is smoke/residual that...

a. is smoke/residual that gets \stuck\ to furniture, carpet, walls, etc.
b. is smoke/residual that is inhaled from someone elses cigarette/e-cig.
c. are the three most harmful chemicals in cigarette smoke
d. comes directly off of a cigarette/e-cig

Explanation:

Question 1

To determine the analogy for the "cloud" from an e - cigarette, we analyze the nature of e - cigarette vapor. E - cigarette vapor is made up of tiny droplets suspended in the air, similar to the droplets from hairspray. Steam from a kettle is mainly water vapor (a gas - like state), gas fumes at a gas station are gaseous hydrocarbons, and smoke from a cigarette is a result of combustion (containing particulate matter from burning). Hairspray releases tiny liquid droplets, which is analogous to e - cigarette vapor.

The "cloud" from an e - cigarette is an aerosol. Aerosols are suspensions of fine solid particles or liquid droplets in a gas. E - cigarette vapor has tiny liquid droplets (from the vaporized e - liquid) suspended in the air. Gas is a single - phase substance, vapor is the gaseous state of a substance that is liquid at room temperature (but e - cigarette vapor is not just the gaseous state of the e - liquid, it has suspended droplets), and smoke is from combustion (e - cigarettes don't combust). So it is an aerosol.

Third - hand smoke is the residual smoke - related substances that adhere to surfaces like furniture, carpet, and walls. Option B describes second - hand smoke (inhaled from someone else's smoking), option C is incorrect as it misdefines third - hand smoke, and option D describes first - hand smoke (directly from the cigarette/e - cig). So the correct description is that it gets "stuck" to surfaces.

Answer:

B. Like the droplets from hairspray

Question 2