- Tropospher e
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- Ozone layer
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Category: Everyday Science mcqs
- Tooth enamel
- Skull
- Knee cap
- Rib
- Iron
- Mercury
- Nickel
- Osmium
- Venus
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- Mars
- None of these
- Thyroid
- Liver
- Pancreas
- None of these
- Liver
- Heart
- Skin
- Kidney
- Oxytocin
- Melatonin
- Adrenalin
- Renin
- Stroboscop e
- Heliograph
- Solograph
- None of these
- Wavemet er
- Viscometer
- Wattmet er
- None of these
- Wood
- Copper
- Iron
- Water
- Earth
- Venus
- Mercury
- Neptune
- Sound cannot travel through a vacuum
- Sound cannot travel through gases
- Sound cannot travel through liquids
- Sound cannot travel through solids
- Ammonia
- Hydrogen
- Nitrogen
- Carbon Dioxide
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