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Our Environment...

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  • Question 1
    1 / -0

    A scorpion kills and then eats a spider. 

    Based on its behaviour, which terms describe the scorpion?

  • Question 2
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    Hawks and owls living in the same area compete for the same type of mouse for food. Which situation would lead to the greatest problem in the food supply?

  • Question 3
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    A food web _________________________.

  • Question 4
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    Which of these are positive influences of human beings on the ecosystem?
    A. Declaring areas as wildlife sanctuaries
    B. Increasing biodegradable packing materials that can be recycled
    C. Removing pollutants from toxic industrial smoke
    D. Using the natural resources intensively

  • Question 5
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    The schematic diagram given here shows a food chain. Which one does not show the direction of energy flow?

  • Question 6
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    Two components of the ecosystem are: 

  • Question 7
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    Which of the following is true in an ecosystem ?

  • Question 8
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    Which of the following is non-biodegradable?

  • Question 9
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    Which of the following is an abiotic component?

  • Question 10
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    There are more herbivores than carnivores in the food chain because____


    1.  More herbivores are needed to support less number of carnivores
    2. Much energy is lost in the transfer of energy from herbivores to carnivores
    3. In this way, food chain stays in equilibrium

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