Q3. Often a storm is accompanied by lightening
(1) Why does this happen? Explain,
(ii) What safety precautions you must take if this happens?
Answers
Answer:
Explanation:
Lightning is an electrical discharge caused by imbalances between storm clouds and the ground, or within the clouds themselves. Most lightning occurs within the clouds.
During a storm, colliding particles of rain, ice, or snow inside storm clouds increase the imbalance between storm clouds and the ground, and often negatively charge the lower reaches of storm clouds. Objects on the ground, like steeples, trees, and the Earth itself, become positively charged—creating an imbalance that nature seeks to remedy by passing current between the two charges.
Precautions:-
Suspend activities for at least 30 minutes after the last clap of thunder. If no shelter is available, crouch low, with as little of your body touching the ground as possible. Lightning causes electric currents along the top of the ground that can be deadly over 100 feet away. Stay away from concrete floors or walls.