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प्रश्न
Change is the law of nature and occurs in our everyday life, at all times and in all places.
Differentiate between the following change with a suitable example.
Natural and man-made change.
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उत्तर
| Natural change | Man-made change |
| (i) Changes brought about by – nature. | (i) Changes brought about by – man. |
|
(ii) Examples:
|
(ii) Examples:
|
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Boiling of water to form steam.
Explain the following giving an example.
Pure substance
State the differences between a physical change and a chemical change.
A burning candle shows both physical and chemical changes. Explain ?
State whether the following is physical or chemical changes.
shaping a piece of glass —
Fill in the blank.
The process of a liquid changing into a solid is called ________
Ammonium chloride is also a sublimable solid. Give a reason why the sublimation of ammonium chloride involves a physical and a chemical change.
Give four reasons why the burning of a magnesium ribbon in the air is considered a chemical change.
What type of change is colouring of a paper?
Water is known as a universal solvent. Why?
