A growing seedling is kept in a dark room. A burning candle is placed near it for a few days. The top part of seedling bends towards the burning candle. This is an example of :
(a) chemotropism
(b) hydrotropism
(c) phototropism
(d) geotropism

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Solution

(c) phototropism

The bending of the top part of the seedling towards the burning candle is an example of phototropism.

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