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प्रश्न
To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?
उत्तर
Yes. The length of the dress can again be increased by unfolding it. Hence, this change can be reversed.
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संबंधित प्रश्न
Chemical reactions are example for
Drying of wet clothes in air is an example of
A drawing sheet changes when you draw a picture on it. Can you reverse this change?
Most of the physical changes are ______.
Name the two types of changes.
What are irreversible changes?
A piece of iron is heated till it becomes red-hot. it then becomes soft and is beaten to a desired shape. What kind of changes are observed in this process-reversible or irreversible?
Which of the following changes cannot be reversed?
- Blowing of a balloon
- Folding paper to make a toy aeroplane
- Rolling a ball of dough to make roti
- Baking cake in an oven
- Drying a wet cloth
- Making biogas from cow dung
- Burning of a candle
Give one example of change occurs on mixing two substances, but can be reversed.
Choose the odd one out. Give a reason for your choice.
