Question

3. What are desirable and undesirable changes? Mention one example each that you have not come
across in your textbook.
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Answer 1

Answer:

here is the answer..

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Answer 2

Explanation:

for example wriping of food , germination of seed change in season desirable and known as undesirable changes are those changes which we do not want to take place for example rusting of iron souring of rotteing of fruits and vegetable global warming Etc.