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State whether the following statements are true or false:

(a) When a candle burns, both physical and chemical changes take place.
(b) Anaerobic bacteria digest animal waste and produce biogas.
(c) Ships suffer a lot of damage though they are painted.
(d) Stretching of rubber band is not a physical change.

Answers (1)

True
True
True
False- Stretching of the rubber band is a physical change.

Posted by

Sumit Saini

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