Practice test

Environmental ecology - Test Set 3

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    In which ecosystem, grassland is included?
    1. Marine
    2. Freshwater
    3. Terrestrial
    4. Artificial
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  2. Question 2

    In Ecosystem, which one shows one way passage?
    1. Free energy
    2. Nitrogen
    3. Carbon
    4. Potassium
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  3. Question 3

    Short-term adjustment by an organism to environmental change are called as?
    1. Adaptation
    2. Acclimatization
    3. Evolution
    4. Succession
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  4. Question 4

    Consider the following statement:
    1. Biodiversity is normally greater in the lower latitudes as compared to the higher latitudes.
    2. Along the mountain gradients, biodiversity is normally greater in the lower altitudes as compared to the higher altitudes.
    Which of the statements given above is/are correct?
    1. 1 only
    2. 2 only
    3. Both 1 and 2
    4. Neither 1 nor 2
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  5. Question 5

    Three of the following criteria have contributed of the recognition of Western Ghats- Sri Lanka and Indo-Burma regions as hotspots of bio-diversity.
    1. Species richness
    2. Vegetation density
    3. Endemism
    4. Ethno- botanical importance
    5. Threat perception
    Which three of the above are correct criteria in the context?
    1. 1,2 and 6
    2. 2,4 and 6
    3. 1,3 and 5
    4. 3,4 and 6
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  6. Question 6

    Biodiversity forms the basis for human existence in the following ways:
    1. Soil formation
    2. Prevention of soil erosion
    3. Recycling of waste
    4. Pollination of crops
    Select the correct answer using the codes given below:
    1. 1,2 and 3 only
    2. 2,3 and 4 only
    3. 1 and 4 only
    4. 1,2,3 and 4
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  7. Question 7

    Which one of the folllowing is not a site for insitu method of colnservation of flora?
    1. Biosphere Reserves
    2. Botanical Garden
    3. National Park
    4. Wildlife Santuary
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  8. Question 8

    Among the following States, which one has the most suitable climatic conditions for the cultivationn of a large variety of orchids with minimum cost of production, and can develop an export oriented industry in this field?
    1. Andhra Pradesh
    2. Arunachal Pradesh
    3. Madhys Pradesh
    4. Uttar Pradesh
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  9. Question 9

    A sandy and saline area is the natural habitat of an Indian animal species. The animal has no predators in that area but its existance is threatened due to the destruction of its habitat.
    Which one of the following could be that animal?
    1. Indian Wild buffalo
    2. Indian wild ass
    3. Indian wild boar
    4. Indian Gazelle
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  10. Question 10

    The "Red Data Books" published by the International Union for Conservation of Nature and Natural Resources (IUCN) contain lists of
    1. Endemic plant and animal species present in the biodiversity hotspots.
    2. Threated plant and animal species.
    3. Protected sites for conservation of nature & natural resources in
    various countries.
    Which of the statement given above is/ are correct?
    1. 1 & 3
    2. 2 only
    3. 2 & 3
    4. 3 only
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  11. Question 11

    In the context of eco-system productivity, marine upwelling zones are important as they increase the marine productivity by bringing the
    1. Decomposer microorganisms to the surface.
    2. Nutrients to the surface.
    3. Botton-dwelling organisms to the surface.
    Which of the statements given above is/are correct?
    1. 1 and 2
    2. 2 only
    3. 2 and 3
    4. 3 only
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  12. Question 12

    The 2004 Tsunami made people realize that mangroves can serve as a reliable safety hedge against coastal calamities. How do mangroves function as a safety hedge?
    1. The mangroves swaps separate the human settlements from the sea by a wide zone in which people neither live nor venture out.
    2. The mangroves provide both food and medicines which people are in need of after any natural disaster.
    3. The mangroves trees are tall with dense canopies and serve as an excellent shelter during a cyclone or tsunami.
    4. The mangroves trees do not get uprooted by storms and tides because of their extensive roots
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  13. Question 13

    There is a concern over the increase in harmful algal blooms in the seawaters of India. What could be the causative factors for this phenomenon?
    1. Discharge of nutrients from the estuaries.
    2. Run-off from the land during the monsoon.
    3. Upwelling in the seas.
    Select the correct answer from the codes given below:
    1. 1 only
    2. 1 and 2 only
    3. 2 and 3 only
    4. 1,2 only3
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  14. Question 14

    The Himalayan Range is very rich in species diversity. Which one among the following is the most appropriate reason for this phenomenon?
    1. It has a high rainfall that supports luxuriant
    2. It is a confluence of different bio geographical zones.
    3. Exotic and invasive species have not been introduced in this region.
    4. It has less humna interference.
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  15. Question 15

    If a tropical rain forest is removed, it does not regenerate quickly as compared to a trpical deciduous foresst. This is because
    1. The soil of rain forest is deficient in nutrients
    2. propagules of the trees in a rain forest have poor viability
    3. the rain forest species are slow-growing
    4. exotic species invade the fertile soil of rain forest.
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  16. Question 16

    When the bark of a tree is removed in a circular fashion all around near its base, it generally dries up and dies because
    1. Water from soil canot rise to aerial parts
    2. roots are starved of energy
    3. Tree is infected by soil microbes
    4. Roots do not receive oxygen for respiration
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  17. Question 17

    Threatended animals and plants are placed in a separated care unit for protectin. It is called _________
    1. Ex-situ conservation
    2. In-situ conservation
    3. Wildlife santuary
    4. National park
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  18. Question 18

    Where can we find the greatest Biodiversity on Earth?
    1. Nile delta, Egypt
    2. African grasslands
    3. Amazonian rain forest
    4. Sundarban mangeove ,India
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  19. Question 19

    What is the difference between the antelopes Oryx and Chiru?
    1. Oryx is adapted to live in hot and arid areas whereas Chiru is adapted to live in steppes and semi-desert areas of cold high moūntains.
    2. Oryx is poached for its antlers whereas Chiru is poached for its musk.
    3. Oryx exists in western India only whereas Chiru exists in north-east India only.
    4. None of the statements a,b and c given above is correct.
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  20. Question 20

    Consider the following:
    1. Black-necked crane
    2. Cheetah
    3. Flying squirrel
    4. Snow leopard
    Which of the above are naturally found in India?
    1. 1,2 and 3 only
    2. 1,3 and 4 only
    3. 1 and 3 only
    4. 1, 2 and 4
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