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प्रश्न
Fill in the blank
An earthquake is a _______ change.
उत्तर
An earthquake is a non-periodic change.
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संबंधित प्रश्न
Tick (√) the correct alternative from the choice given for the following statement
Burning is a
True or false?
During a physical change energy is either given out or absorbed by the system.
Melting of solid (wax) is a physical change.
Distinguish between the following.
Periodic change and non-periodic change
Distinguish between the following.
Natural change and man-made change
Give reason.
A dry handkerchief gets wet at once on dipping in water, but it takes longer for a wet handkerchief to dry.
Explain in brief the involvement of energy in physical and chemical changes.
How can a change occur in a substance?
What is the change?
Cut vegetables turn brown when exposed to air, this is due to ______.
