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Why is it necessary to ban the use of plastic bags?
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Explain the importance of biopesticides in organic farming.
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How can the oil spills of rivers and oceans be cleaned?
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Answer the following questions by choosing correct option.
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Body temperature of reptiles is not constant.
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Balanoglossus is connecting link between non-chordates & chordates.
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All vertebrates are chordates but all chordates are not vertebrates.
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Our body irritates if it comes in contact with jelly fish.
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