Earthing is provided in buildings to protect them from?
A. lightning.
B. leakage of electric current.
C. cyclone.
D. Thunderstorm.

Hint: Earthing is given in the structure to shield us from electrical stuns because of any spillage of electrical flow. It is done to give security by limiting the stun on the off chance that somebody unintentionally contacts the broken wire.

Complete answer:
On the off chance that you are having a change of expansion made to your electrical establishment, your circuit tester should check (just as different things) that the earthing and holding plans you have are up to the necessary norm. This is because the wellbeing of any new work you have done (anyway little) will rely upon the earthing and holding courses of action.
Holding is utilized to decrease the danger of electric stuns to any individual who may contact two separate metal parts when there is a shortcoming in the stock of electrical establishment. By associating holding conductors between specific parts, it decreases the voltage there may have been.
Green and yellow transmitters that interface open metal pieces of electrical gear, (for example, a warmed towel rail) to available metal pieces of electrical hardware as well as open metal pieces of things that are not electrical, (for example, pipes). These associations are made to forestall a hazardous voltage between two open metal parts if there is a flaw. You may require advantageous holding for rooms containing a shower or shower, aside from where all circuits in the room are RCD ensured and the primary holding is up to the
Hence the correct answer is an option (B).

Note:
Earthing is utilized to shield you from an electric stun. It does this by giving away (a defensive conductor) for a flaw current to stream to earth. It additionally causes the defensive gadget (either an electrical switch or wire) to turn off the electric flow to the circuit that has the shortcoming.