Earthing helps to transfer unwanted electric charges in electrical circuits to flow to earth and in this way it prevents the electrical equipment from damage.

On being struck by lightning, victim carries no electrical charge. The death by lightning occurs due to cardiac arrest and stopped breathing. We can give first aid by performing CPR and mouth to mouth breathing.

The causes of sparking are :
(i) On electric pole, when wires get loose.
(ii) Breaking of electric wire during thunderstorm.
(iii) Loose connection between plug and socket.

The process of transferring of charge from a charged object to the earth is called earthing. It is provided in buildings to protect us from electrical shocks due to any leakage of electric current.

Tremors on the earth can also be caused when a volcano erupts, or a meteor hits the earth, or an underground nuclear explosion is carried out. However, most earthquakes are caused by the movement of the earth's plates.

Lightning conductor is a device which is used to protect the buildings from the effect of lightning.

The weak zones where earthquakes are more likely to occur are called seismic or fault zones.

By taking shelter in houses or by remaining in covered area.

The process of transferring of charge from a charged object to the earth is called earthing.

Since, the inner core is made up of solid iron and the outer core is made up of molten iron.

If a charged plastic straw is brought near the uncharged plastic straw, then they will attract each other.

The scale which is used to express the power of an earthquake is a Richter scale.

Thunderstorm, lightning and cyclones are the natural phenomena that can be predicted.

Unlike charges attract each other whereas like charges repel each other.