- Burning of coal
- Conversion of water into steam
- Digestion of food
- Burning of paper
Author: Zabeehullah
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- Hysteria
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- Ostrich
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- Bromine
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- Sea water
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- Graphite
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- Clock
- Microscope
- Barometer
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- Sodium sulphate
- Sodium stearate
- Sodium chloride
- Sodium nitrate
- Heat
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- Kinetic
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