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प्रश्न
Fill in the blank
An earthquake is a _______ change.
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उत्तर
An earthquake is a non-periodic change.
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संबंधित प्रश्न
What do you observe when :
a piece of paper is burnt
What do you observe when :
solid ammonium chloride is heated
State whether the following is physical or chemical changes.
Melting of wax —
Tick (√) the correct alternative from the choice given for the following statement
When sugar is heated, its colour changes into
Chemical changes are accompanied by changes in energy.
What role does energy play in initiating a chemical change ?
Under which different types can the following changes be classified?
Occurrence of an earthquake.
Give reason.
While purchasing canned food, its expiry date should be checked.
Explain in brief the involvement of energy in physical and chemical changes.
Paper, LPG, CNG petrol, etc, are ______ substances.
