some natural phenomena

Which of the following is not a natural phenomenon?

• Cooking
• cyclone
• Earthquake

Which of the following natural phenomenon is most destructive in terms of loss of life and property?

• Earthquake
• Lightening

Lightening is _________ on huge scale.

• Electric spark
• Magnetic effect
• Electro-magnetic effect

Unlike charges

• Repels each other
• Attract in same direction
• Attract each other

Like charges repel and unlike charge

• Attract each other
• Repel or attract
• Repel each other

Some object can be charged by _________ with other objects.

• Heating
• Rubbing
• Touching

Electroscope is used to

• Check presence of charge
• Measure the conductivity
• Presence of magnetism

The process of transferring a charge from a charged body to the earth is called

• Hydrolysis
• Earthing
• Discharging

Earthquakes are caused by the

• Movement of earth plates
• High pollution level
• Tilting of earth axis