Answer:

Medicines(syrup/tablets)—to cure illness, might overdose, put at high places or refrigerator, dispose properly

Matches—solid, a burning stick, can cause fire, place at safe, dispose by putting the used matchstick at the sink to lessen fire alert

Nails—solid, for carpenter, can harm kids and adults, put them in the tool box, don't let them scattered at the floor

Gasoline(car)—liquid, to fuel the car, poison and toxic, utelize the garage and check the gasolines

Wires/plugs—solid, for electricity usage, might electrocuted people, don't allow plugs hanging, check broken wires

Explanation:

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