Practice Test | Kullabs.com
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  • Which one of them is a biotic element?

    Soil
    Plants
    Air
    Water
  • Which one of them is not a way of controlling water-borne diseases?

    ;i:3;s:30:
    ;i:2;s:108:
    ;i:1;s:76:
    ;i:4;s:42:
  • Which of the following is not the water-borne disease?

    Dysentry
    Cholera
    Asthama
    Diarrhoea
  • If the environment is polluted, it causes ______ diseases.

    only communicable
    only non-communicable
    both communicable and non-communicable
    neither communicable nor non-communicable
  • ______ is a must for the growth and development of human race.

    Environmental imbalance
    Environmental pollution
    Environmental balance
    Environmental degradation
  • Which one of the following is the abiotic factor?

    plant
    wild animals
    water
    animal
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