Understanding Lightning: A Detailed Exploration

What initiates the formation of lightning within a thunderstorm?

• Separation of positive and negative charges

• High wind speeds

• Presence of clouds only

• Low atmospheric pressure

What is the role of leaders in the formation of lightning?

• They act as conductive pathways for charges

• They create sound waves

• They cool down the air

• They reflect light

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What distinguishes a cloud flash from a ground flash?

• Color of the flash

• Only occurs within clouds

• Connection to the ground

• Loudness of the resulting thunder

What happens during the return stroke of a lightning flash?

• Air pressure decreases suddenly

• Lightning disappears completely

• Electrons accelerate causing extreme heating

• Charges dissipate into the air

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What is the primary effect of the return stroke in a lightning flash?

• It clears the clouds

• It causes extreme heating

• It cools the air

• It generates wind

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How can one differentiate between positive and negative cloud-to-ground lightning?

• By the height of cloud bases

• By the flickering of the main channel

• By the duration of the flash

• By the sound of thunder

What is a multi-stroke CG flash?

• A single flash with multiple return strokes

• A flash that strikes multiple clouds

• A flash that does not reach the ground

• A flash with a single, continuous stroke

Which type of CG lightning is more likely to have multiple return strokes?

• Both are equally likely

• Negative CG

• Positive CG

• Neither type

Why are positive CGs considered more dangerous than negative CGs?

• They occur more frequently

• They are hotter and more powerful

• They are louder

• They last longer

What is the typical behavior of a positive CG's return stroke?

• It is silent

• It is bright and long-lasting

• It is short and weak

• It flickers frequently