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active components can have gain, passive can't.
active
Active - Active Active - Passive
The two different types of sonar are passive and active.
Passive immunity is different from active immunity because it means that you can get it from another person and you can give it someone else. Active immunity is when you get it by yourself, not from another person, and you cannot pass it to another person.
the cat was injured in a fight passive or active
== == "English grammer active and passive voice change from active to passive .
passive
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Passive (diffusion).
Osmosis is a passive form of diffusion as it travels downa concentration gradiant, as opposed to active transport; a type of diffusion that can go against a conc. grad.
active and passive