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Biodiversity an...

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  • Question 1
    1 / -0

    Riya visited her village after $$10$$ years and found that there is a problem of desertification. What could be the probable reasons for this?
    (i) Overgrazing.
    (ii) Indiscriminate cutting of trees.
    (iii) Poorly drained irrigation systems.

  • Question 2
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    Match the following:

    A. $$\alpha$$ diversity1. The richness of different species in a habitat. 
    B. $$\beta$$ diversity2. The richness of different species along with a gradient from one habitat to another habitat within the community. 
    C. $$\gamma$$ diversity3. The richness of different species in different habitat.

  • Question 3
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    What is the approximate ratio of animals and plants species in our country? 

  • Question 4
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    Which of the following statement for biosphere reserve is incorrect?

  • Question 5
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    In the above graph relation between species richness and area for a wide variety of taxa turns out to be a rectangular hyperbola on a logorithmic scale, the relationship shown by straight line. In which area slope of line to be much steeper.

  • Question 6
    1 / -0

    Find out the correct match from the following table :

    Column-IColumn-IIColumn.
    (i)In situ conservationBotanical gardensEndemic species
    (ii)Ex situ conservationZoological parksCritically endangered
    (iii)Narrowly utilitarian
    		pollinationDirect economic benefit

  • Question 7
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    Following arrangement is correct from the point of view of decreasing biodiversity in angiosperms (N), fungi (F), pteridophytes (P) and algae (A).

  • Question 8
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    The albedo of the earth's surface is only about 4%, yet the combined albedo of the earth and the atmosphere is about 30%. Which set of conditions below best explains why this is so?

  • Question 9
    1 / -0

    Which continent is involved in glacier melting in mountainous regions?

  • Question 10
    1 / -0

    According to theory of special creation which one is wrong?

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