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The water in an open pond remains cool even in hot summer because
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You are travelling in a car and a thunder storm suddenly takes place. What will be your first step ?
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The most common substance responsible for pollution is
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If a large number of people are enclosed in a room, then
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Higher plants take up Nitrogen as
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It is not advisable to sleep under a tree at night because of the
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Green plants in the sea are useful for the respiration of fish because
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Stripes on the back of the animals are the indication of
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Which of the following is a balanced fertiliser for plants ?
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Which of the following is not immunised by ‘Triple Antigen’ ?
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