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प्रश्न
Distinguish between the following.
Natural change and man-made change
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उत्तर
| Natural changes | Man-made changes | |
| 1. | The changes that are brought about by nature itself and are not under the control of humans are called natural changes. | The changes that are brought about by humans are called man-made changes. |
| 2. | Examples: change of season, tides in the sea, aging of plants, etc. | Examples: burning of fuels, cutting hair, switching on lights, etc. |
संबंधित प्रश्न
What do you observe when :
solid ammonium chloride is heated
State whether the following is physical or chemical changes.
burning of wood -
True or false?
In a chemical change, rearrangement of molecules and atoms involves some energy changes.
Chemical changes are accompanied by changes in energy.
Under which different types can the following changes be classified?
Conversion of milk into yoghurt.
Under which different types can the following changes be classified?
Bursting of a cracker.
Under which different types can the following changes be classified?
Stretching of a spring.
Give reason.
A dry handkerchief gets wet at once on dipping in water, but it takes longer for a wet handkerchief to dry.
The difference between initial state and the final state is called change.
Cut vegetables turn brown when exposed to air, this is due to ______.
