1.Boiling water is used as a method of making it potable by killing microbes and viruses that may be present.
2.If a metal spoon is dipped into a cup of hot water, the end of the spoon soon feels warm. Heat is transferred along the spoon by conduction.
3.The pilot heats the air in a hot air balloon. As the air gets hotter, it expands and its density drops
4.Ignition and combustion of wood is mainly based on the pyrolysis (i.e. thermal decomposition) of cellulose and the reactions of pyrolysis products with each other and with gases in the air
5.At temperatures above 32°F (0°C), pure water ice melts and changes state from a solid to a liquid (water); 32°F (0°C) is the melting point.
Answers & Comments
1.Boiling water is used as a method of making it potable by killing microbes and viruses that may be present.
2.If a metal spoon is dipped into a cup of hot water, the end of the spoon soon feels warm. Heat is transferred along the spoon by conduction.
3.The pilot heats the air in a hot air balloon. As the air gets hotter, it expands and its density drops
4.Ignition and combustion of wood is mainly based on the pyrolysis (i.e. thermal decomposition) of cellulose and the reactions of pyrolysis products with each other and with gases in the air
5.At temperatures above 32°F (0°C), pure water ice melts and changes state from a solid to a liquid (water); 32°F (0°C) is the melting point.
Answer:
ano po ang tano nito
Explanation:
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