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प्रश्न
Write true or false
A natural change can also be a desirable change.
पर्याय
True
False
उत्तर
True
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संबंधित प्रश्न
Is burning a physical change or a chemical change? Why?
State whether the following is physical or chemical changes.
photosynthesis —
Photosynthesis cannot take place at night.
Classify the following changes as physical or chemical.
Classify the following as physical or chemical changes :
- Cooking of food
- Boiling of water
- Cutting of trees
- D0issolving salt in water
- Digestion of food
- Melting of ice
Classify the following as a physical or a chemical change.
Burning of coal
Fill in the blank with the appropriate word of the statement given below:
If a change is permanent and irreversible it is considered a _________ change.
Fill in the blank with the correct word of the statement given below:
Sublimation of iodine is an example of _________ change.
When a woolen yarn is knitted to get a sweater, the change can be classified as ____________.
______ is the substance that is dissolved in a solvent.
