Question

Practice Time
A Tick the correct option:
1 Which one of the following factors is involved in a change?
(a) heat
(b) chemical reaction
(c) force
(d) all of these
Force can cause change in the
(a) size
(b) direction (c) shape
Which one of the following materials expands on heating?
(a) paper
(b) wood
(c) soil
4. Which of the following is a reversible changes?
(a) curdling of milk
(b) heating of milk
(c) dyeing of clothes
(d) tearing of paper
5. Irreversible changes
(a) cannot be reversed
(b) are permanent​

Answer 1

Answer:

1 answer all of these

2 answer direction

4. answer dyeing of clothes

5 answer cannot be reversed

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