Question

an undesirable change. Fill in the blanks. 1. A ________change forms new substances. 2. A change which takes a long time to complete is a______change 3. A change that has harmful or wasteful effects is an__________change 4. A change that cannot be reversed is an ________change.​

Answer 1

Solution:

1.Physical change

2.Chemical

3.Released

4.Physical

5.Chemical

Answer 2

Answer:

1) Chemical Change

2)Slow Change

3) Pollution

4)Permanent Change

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