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This week’s questions

When we sit in a posture for a long time and try to walk, we tend to fall or we may not be able to walk for a few metres. Why?

V. Bhalakumar, Chennai

Very often, when we record our voice and hear it, it does not sound like our voice. Why?

V. Bhalakumar, Chennai

Is it possible to extract oil from grams. If not, why not?

D. Epiphany Pushparaj Vincent, Vellore, Tamil Nadu

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