Question

Define Posion gas and also what are some advantages and disadvantages?

Answer 1

Answer:

a toxic gas, liquid, or solid that emits poisonous vapors and is intended to destroy, harm, or impair people by inhalation or touch (as in chemical warfare).

Explanation:

and no i did not copy and paste that i put my own words in to it

so you can copy it with it being copyright :)