It depend upon gas.There are harmful gases.Examples like Chlorine,Florine etc
No, geckos are not harmful to humans. If anything, they are beneficial to humans because they eat insects
volcanoes give off a deadly gas in a mushroom cloud that quickly spreads,suffocating everyone in it's path.
Yes, plankton is harmful to humans because they carry salmonella disease. Other than that, they are not harmless at all.
Yes
it make humans and animals ill!
No, not all are. Nitrogen is the most common gas in the atmosphere but it doesn't bother us. And oxygen is a gas we absolutely need.
yes the lichens are harmful but to some humans
They are not harmful to humans
earthworms are not harmful to humans theyare just pink and slimmyNo. Worms that are harmful to humans are roundworms, flatworms and hookworms.
Phone radiation can be harmful to humans. It is harmful when the person is on the phone a lot.
Americium is harmful to humans because is very radioactive.
No they are not. In fact, humans are more harmful to them then they are to us.
No, geckos are not harmful to humans. If anything, they are beneficial to humans because they eat insects
No, the gas is not harmful.
really harmful
yes all fumes are potentially harmful to humans
There are many harmful effects of goat on humans. For humans that are allergic to goats they can potentially die.