This is probably biological warfare because it's not allowed according to the Geneva congress. Using poisons, toxic matters, viruses and bacteria, as well as flamethrowers and things like that are forbidden or else it will be considered a war crime and people will answer for it. It was practiced in World War 1 but was forbidden after.
Well, the answer to this question is D. All of the amAbove
Answer:
i think it would be C. or D.
Explanation:
cs earths inner is hot and is full of gasses etc.