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प्रश्न
Write true or false
Decomposition of leaves is a fast change.
विकल्प
True
False
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उत्तर
False.
Decomposition of leaves is a slow change.
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संबंधित प्रश्न
Fill in the blank
change in which the substance can be brought back to its original state is called a ............... change.
Classify the following as a physical or a chemical change.
Butter getting rancid
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.
Periodic and non-periodic change
Differentiate between a physical change and a chemical change with reference to – Nature of change is temporary and reversible or permanent and irreversible.
Fill in the blank with the correct word of the statement given below:
Sublimation of iodine is an example of _________ change.
Change is the law of nature which occurs in everyday life.
State when a substance [i.e. matter] undergoes a kind of change.
Compare the energy changes involved during a physical and a chemical change.
Select the chemical changes from the following list of changes
Vaporisation of water into water vapour.
Select the chemical changes from the following list of changes
The occurrence of lightning.
Tearing of sheet of paper into pieces is ______ By the process of Heating of water, change.
