Periodic Classification of Elements — Science STD 10 — Question

The male organ of reproduction in the flower is the ________.

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A plant’s response to gravity is called __________.

The characteristic which is visible in an organisms is called its _____________.

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A motor contains a kind of switch called a _________ which reverses the current every half _________

To bring light from a near object to a focus on the retina of the eye, the convex eye-lens needs to be made ____.

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The organs of respiration in man are the __________.

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The lines of ______ round a straight current-carrying conductor are in the shape of _____.

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Chemical formula of washing soda is _______.

Plants → Antelope → ___________.

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Neutral substances have a pH of _______.