SSC General Science & Technology Sample Paper NCERT Sample Paper-2

  • question_answer
    Mosquitoes breed on the free surface of stagnant water because:

    A)  The eggs can be supported by the higher surface-tension of the liquid

    B)  The eggs can only grow in filthy water

    C)  The liquid provides higher buoyancy to the eggs

    D)  Density of the egg is less than density of the liquid

    Correct Answer: A

    Solution :

    [a] Adult females lay their eggs in stagnant water; some lay eggs near the water's edge; others attach their eggs to aquatic plants. Each species selects the situation of the water into which it lays its eggs and does so according to its own ecological adaptations.

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