12. What actually causes lightning?
13. What is earthing?
14. Name any two factors on which the height of a person depends.
15. Define adolescence.
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1.During a thunderstorm, the air currents move upwards and the water droplets move downwards. And this caused due to the separation of charge due to this vigorous motion. ... These charges flow to meet, thus producing strikes of lightning.
2.Earthing is used to protect you from an electric shock. It does this by providing a path (a conductor) for a fault current to flow to earth.
3.hormones
Food eaten
4 the process of developing from a child into an adult
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