Some natural phenomenon

What are the two kinds of charges?

• Negative charge and positive charge

• Negative charge and neutral charge

• Positive charge and negative charge

• Positive charge and neutral charge

What is the process of transfer of charge from a charged object to the earth called?

• Charging

• Discharge

• Earthing

• Grounding

What causes lightning?

• Transfer of charge

• Electric discharge between clouds and the earth

• Electric current

• Static charges

What can protect buildings from the effects of lightning?

• Lightning conductor

• Tsunami

• Thunder

• Earthquake

What is an earthquake?

• A sudden shaking or trembling of the earth

• A sudden burst of light

• A strong windstorm

• A volcanic eruption

What causes an earthquake?

• Lightning strike

• Thunderstorm

• Tsunami

• Disturbance deep inside the earth's crust

How is the destructive energy of an earthquake measured?

• On the Tsunami scale

• On the Richter scale

• On the Thunder scale

• On the Lightning scale

Where do earthquakes tend to occur?

• In the ocean

• In the mountains

• At the boundaries of earth's plates

• In the deserts

What should we do to protect ourselves from earthquakes?

• Run outside

• Take necessary precautions

• Ignore the warnings

• Stay near tall buildings

What is an electroscope used for?

• Detecting thunderstorms

• Detecting earthquakes

• Detecting lightning

• Detecting charged objects