Question

useful,harmful,slow,fast,reversible,irreversible changes definition and two examples for each​

Answer 1

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HELLO MATE

>>> USEFUL= It is a change that is beneficial in daily or other activities. Ex- Switching on of electronics. Recycling things.

>>> HARMFUL/ UNDESIRABLE= It is a change that we dont want and this change is very harmful for us. Ex- Flood. Breaking of glass.

>>> SLOW= It is a change which happens very slow, this change can happen within days/months/weels/years. Ex- Rotting of fruits/vegetables. Rusting of irons.

>>> FAST= It is a change which happens very fast, this change can happen within seconds/minutes/hours. Ex- Breaking of glass. Natural disasters.

>>> REVERSIBLE= It is a change in which object/substance can be brought back into its original substance. Ex- Chocolate. Paper clip.

>>> IRREVERSIBLE= It is a change in which object/substance cannot be brought back into its original substance. Ex- Burning of paper. Cooking of food.

THANK YOU

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