An earthquake of magnitude 8-9 is:

The lightning conductor was first established by the scientist named:

SI unit of electric charge is:

Electric current is to be passed from one body to another. For this purpose, the two bodies must be joined by

Lightning always follows

The power of an earthquake is expressed on a scale called

Where is the lightning rod attached to protect the building from lightning?

Which one is the best describe of this picture?

This kind of damage would be caused by an earthquake of intensity ___________ on the Richter scale.

When an atom loses electrons, there is less number of electrons than protons. The object becomes_________.

Name the scientist who invented electroscope.

Charles Francis Richter invented?

Lightning is an______but on a huge scale.

A wooden house is ______ than a concrete house in case of earthquake.

The outer most layer of the earth is broken into a number of plates known as -

The instrument which can find out the source of seismic waves.

When did Benjamin Franklin do his famous kite experiment?

What causes lightning?

We should not lie flat on the ground during lightning.

Which of the following is not likely to cause Tsunami?