1.When you crystallize a salty solution
sugar
simple uses of ammonia
house hold cleaning
Coal can be burnt and used as a heat source
Distillation can be used to separate water from salt water.
how is petrol used in our everday life
sugar
It usually isn't. Scientific notation is used for very large and very small numbers, that are not normally used in your daily life. Unless your "daily life" involves work in science or engineering.
I use the Golden Ratio in my daily life to design websites.
Tools that are commonly used to study daily life include things like polls and surveys. Sometimes video cameras and audio recordings are also used to study daily life.
These nuts
You pet them
Sunblock.
in alternators
In dentistry .
They are used in airplanes and in sailboats.
zero is used badly