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प्रश्न
Define a slow change.
व्याख्या
उत्तर
Changes which take place over a long period of time (hours/days/months/years) are known as slow changes.
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संबंधित प्रश्न
Bursting of fire crackers is a ______ change whereas germination of seeds is a ______ change.
Analogy
Burning of matchstick: _______ change: Rotation of the Earth: Slow change
Give one example for each case that happens around you.
- Slow and fast change
- Reversible and irreversible change
- Physical and chemical change
- Natural and man-made change
- Desirable and undesirable change
Growth of seed into sapling is ______ change.
______ changes which take place within a short period of time.
Analogy:
Germination of seed:: slow change.
Breaking of glass:: ______.
Match the following:
| 1. | Lighting | a. | Physical change |
| 2. | Touch me not plant leaves showing | b. | camphor |
| 3. | Sugar dissolving | c. | Water |
| 4. | Sublimation | d. | Reversible change |
| 5. | Universal solvent | e. | Fast change |
Mention any three examples of fast change?
Formation of coal is a ______.
Choose the odd one out. Give a reason for your choice.
