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प्रश्न
What are man-made changes ?
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उत्तर
Man-made changes are those that occur because of human activities e.g. changing the direction of flow of a river by building a dam.
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संबंधित प्रश्न
Changes in which only ______ properties of a substance change are called physical changes.
Write true or false
Burning of sugar is a temporary change.
Classify the following changes as physical or chemical.
Make a list of different types of changes with example.
Which of the following are chemical changes ?
- decaying of wood
- burning of wood
- sawing of wood
- hammering of nail into wood
Given reason:
Burning of paper is a chemical change.
Fill in the blank with the correct word of the statement given below:
Sublimation of iodine is an example of _________ change.
What type of change is colouring of a paper?
Ice, water and water vapour look different and display different ______ properties but they are ______ the same.
Iron pipes coated with zinc do not get rusted easily.
