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Is rusting useful or harmful?
harmful as it makes the metal brittle
What are water which contains harmful materials called?
water which contains harmful materials is said to be
Is oxygen is the harmful or useful gas?
That depends on what effect is desired; If you like to breathe, it is a useful gas; If you prefer that your car (or whatever) not be rusty (oxidized), then it is a harmful gas.
Why is vinegar useful as a acid?
because a vinegar is not harmful to human while a hydrohcloric acid is harmful
When is it useful not useful to heat materials?
If you are stuck with metal for example you can heat it
Are lions harmful or useful?
lion are useful and harmful
Is a ameoba harmful or useful?
It is not harmful. Also it is not useful
What are Useful and Harmful Changes?
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
Is a butterfly useful or harmful?
useful
You cook some chips in the oven useful or harmful?
i think its both harmful and useful
Is natural gas useful or harmful?
it is useful
Which are harmful and useful to human being?
Ozone at ground level is harmful. It is useful in stratosphere as it protects us from harmful UV rays.
Is carbohydrate useful or harmful?
A carbohydrate can be useful or harmful depending on the type that is eaten. Good carbohydrates have fiber in them.
List down 10 useful 10 harmful changes in the environment?
changes both harmful and useful
Is oxygen useful or harmful?
It is useful because we can breathe it.
Is lassa virus harmful or useful?
useful for dieing (;
Is cooking chips in the oven harmful or useful?
It is USeful
