No
petrol
By putting harmful gases into the air
To kill bacteria that live in the the milk, some of which may be harmful to people.
People do not wear gas masks in hospitals. A gas mask is an item of military equipment intended to protect against poison gas such as chlorine, phosgene etc. In hospitals, people sometimes wear face masks to filter infectious agents out of the air. This is not harmful in any way.
Electromagnets are not harmful to people.
Yes it is harmful to people.
Coffee grounds are not harmful to people.
it can be harmful but we have antibiotics so they aren't as harmful as some viruses.
No
which stage of the mosquito is harmful
Dogs are not harmful to people unless they are stray and have not been trained and doesn't know how to be around people.
Dogs are not harmful to people unless they are stray and have not been trained and doesn't know how to be around people.
There are harmful effects of UV on people. People can suffer lifelong from fatal problems.
Before soaking metal jewerlry in WD40 to remove adhesive, test on a small area. This will prevent you from ruining the piece if the WD40 removes or damages the finish.
they are harmful because they have poisnous like snakes
With WD40