Question
Why do we sometimes slip on smooth surfaces like ice or polished floors? Explain.
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Answer
When we walk on surfaces like ice, we often slip, which means we lose our balance and fall. This happens because the force that helps us stay upright and move forward (friction) is not enough. These surfaces have fewer irregularities. Minimizing the contact area and the force of friction between the surface and our shoes makes it easier to slide instead of grip. A layer of water, even a thin one on ice, can further reduce friction by acting as a lubricant, making the surface even more slippery.
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→$a.$ What is the general name of the organelles $X?$
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$1.$ The process of the fusion of the gametes.
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$2.$ Sperms are produced in these male reproductive organs.
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$1.$ The process of the fusion of the gametes.
$6.$ The type of fertilisation in hen.
$7.$ The term used for bulges observed on the sides of the body of hydra.
$8.$ Eggs are produced here.
Down:
$2.$ Sperms are produced in these male reproductive organs.
$3.$ Another term for in vitro fertilisation.
$4.$ These animals lay eggs.
$5.$ A type of fission in amoeba.