Ozone is beneficial in stratosphere. It acts as a pollutant at ground level.
virus
No, geckos are not harmful to humans. If anything, they are beneficial to humans because they eat insects
because you can get infectious diseases
Mutations that succeed [are beneficial] provide Evolution, so not at all.
Hand, foot and mouth disease is caused by a group of viruses, that belong to genus entero virus. This group include polio viruses, coxsackie viruses, echo viruses and entero viruses.
it actually depends on the type of virus in question. There a viruses which are used to correct genetic abnormalities which are infact beneficial and there are others which are harmful to living organisms
the harmful and the beneficial effects of advertising?
Any virus is harmful. Your question should be "Is (insert name of virus here) harmful?"
Harmful.
Entero - Whole
Cows are very beneficial.
it is a beneficial plant
TOBACCO MOSAIC VIRUS is harmful virus as it causes cancer and other lungs disease
Gasoline
beesk
examples of harmful liquids