Yes. Hydrogen gas is highly flammable.
if you breath it in it will harm the human parts of youur body.
sulphide acid and hydrogen sulfate are harmful materials that can harm a metal.
The real question is "How Can It Not Harm People"
No they dont harm people
no but hey can harm some animals
Luckly, it does not but, it still can harm your skin. It is dangerous if you mix other chemicals in it!
People who harm animals were likely hurt themselves. When people are abused, they look for someone who is weaker than they are to hurt.
over a long period of time it can harm you
NO they don't harm in anyway!
Yes- they can physically move things and harm people.
Radiation will always harm people no matter where they are, as it causes cancer.
how does lions harms people