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Biology Test 18...

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  • Question 1
    4 / -1

    'BOD' stands for

  • Question 2
    4 / -1

    Sedimentation is a physical process used in wastewater treatement to :-

  • Question 3
    4 / -1

    In india Biogas production was developed by :

  • Question 4
    4 / -1

    Identify the correct pair of characters of the microorganism associated with biogas production.

    (i) Decomposition of organic nutrients

    (ii) Present in stomach of cattle

    (iii) obtain energy from sunlight

    (iv) respirates aerobically

  • Question 5
    4 / -1

    Which biocontrol agent is very common in root ecosystem and is effective against several plant pathogens?

  • Question 6
    4 / -1

    Which of the following pair is examples of bio fertilisers ?

  • Question 7
    4 / -1

    Mark the incorrect statement :-

  • Question 8
    4 / -1

    Semi dwarf rice varieties which were developed in India, are :-

  • Question 9
    4 / -1

    Bathua is enriched in :

  • Question 10
    4 / -1

    Classical plant breeding involved  a   of pure lines followed by   b   to produce plants with desirable traits :-

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