Question

B. FILL IN THE BLANKS :
1. Curdling of milk by bacteria is a
... change
2. Weathering of rocks is a ..
change
3. Spinning of a top is a .....
... change
4. Occurrence of landslides is a ..
change
5. Eruption of volcanoes is a
change
6. Moulding of clay is a
change
7. Rusting of iron nails is a
change
8. Evaporation of water is a
change
9. Burning of paper is a ......................... change.
10. Formation of day and night is a
... change​

Answer 1

Answer:

1). desirable

2). chemical

3). physical

4). undesirable

5). undesirable

6). chemical

7). chemical

8). physical

9). chemical

10). desirable

Explanation:

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Answer 2

Answer:

1 Chemical change

2 physical change

3 reversible change

7 Chemical change

8 Physical change

9 Chemical change

Explanation:

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