Why the metal rods can’t be charged by holding them in hands ?

Give examples of non-conductors and conductors.

What are called conductors and non-conductors ? In which free electrons are more ? Conductor or non-conductor.

What is called electrostatics ?

If $10^{9}$ electrons move out of a body to another body every second. how much time is required to get a total charge of $1 \,C$ on the other body?

What are positive and negative charges ? Which type of charge does electron have ?