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Our Environment...

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  • Question 1
    1 / -0

    An agriculture / crop land is:

  • Question 2
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    Ozone layer is mainly damaged by:

  • Question 3
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    The number of trophic levels in a food chain are:

  • Question 4
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    Flow of energy in an ecosystem is always:

  • Question 5
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    Accumulation of non-biodegradable pesticides in the food chains in increasing amount at each higher trophic level is known as:

  • Question 6
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    Match the following with the correct response:

     (1) Biodegradable  (A) Plastics, detergents, Pesticides etc
     (2) Non- biodegradable  (B) Green plants
     (3) Decomposers  (C) Bacteria and Fungi
     (4) Producers  (D) Dead parts of plants and animals

  • Question 7
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    Match the following with the correct response:

     (1) I Trophic level  (A) Carnivore
     (2) II Trophic level  (B) Plants
     (3) III Trophic level  (C) Top carnivore
     (4) IV Trophic level  (D) Herbivores

  • Question 8
    1 / -0

    Match the following with the correct response:

     (1) Saprotrophs  (A) Organisms obtaining food from green plants
     (2) Parasites  (B) Organisms obtaining food from host
     (3) Autotrophs  (C) Organisms obtaining food from dead plants and animals
     (4) Herbivores  (D) Organisms which prepare their own food

  • Question 9
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    Match the following with the correct response:

     (1) Tree  (A) Producer
     (2) Grasshopper  (B) Secondary consumer
     (3) Frog  (C) Herbivore
     (4) Snake  (D) Secondary carnivore

  • Question 10
    1 / -0

    Match the following with the correct response:

     (1) Chlorofluorocarbons  (A) Increased concentration of non biodegradable chemicals
     (2) Biomagnifications  (B) Biotic and abiotic factors
     (3) 10% Percent law  (C) Energy reduce at each trophic level
     (4) Ecosystem  (D) Ozone depletion

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