On containers and doors accessing places which contain harmful things.
In water there are such things as: feces, dirt, bacteria etc.
The things that create spit are organs in your mouth called salival glands. They create your spit.
spit
No, cats do not have venom in their saliva. Cats may spit or hiss as a defensive behavior, but their saliva does not contain venom like some venomous animals.
Two things that are harmful
If you get spat at by a devils coach horse beetle it is not necessarily harmful. It is only harmful if the spit touches your eyes or sensitive body areas.
No, spit is not acidic. Saliva, also known as spit, typically has a pH around 6.5 to 7.4, which is close to neutral. It helps in the digestion process and protects the mouth against harmful bacteria.
Toxins contain chemicals or substances which are harmful to humans and animals.
Spit does contain germs. Spit is saliva. Saliva contains germs because our mouths are full of germs! The mouth is one of the dirtiest areas of the body! So when a person spits, YES they do spread germs!
It could contain a number of things that are harmful to people - including faeces, bacteria, insect eggs, chemicals etc.
things are harmful to earth