acido,clorox,paraffin,and insecticide.Enjoy!!!
muriatic acid,bleach,alcohol.
yes some chemical reactions are harmful to us. as digestion of food, photosynthesis, decomposition of organic waste are some examples of the useful chemical reactions.
changes both harmful and useful
The internet can be useful and harmful.
both, depending on circumstances
tv light bulb
examples of harmful liquids
every liquid can be harmful as you can easily drown as your lungs wll fill with this liquid
lion are useful and harmful
It is not harmful. Also it is not useful
The changes talking place in our surroundings and which are useful to us are called Useful changes. The changes which are not useful but harmful are called Harmful changes
useful
yes some chemical reactions are harmful to us. as digestion of food, photosynthesis, decomposition of organic waste are some examples of the useful chemical reactions.
i think its both harmful and useful
it is useful
Ozone at ground level is harmful. It is useful in stratosphere as it protects us from harmful UV rays.
A carbohydrate can be useful or harmful depending on the type that is eaten. Good carbohydrates have fiber in them.
changes both harmful and useful