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UPSC CDS Environment & Ecology — practice questions — page 2

Explore 308 free Environment & Ecology questions in UPSC CDS Environment. Open each question or exercise to read its content, reference answers and available explanation.

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Environment & Ecology questions and exercises with answers

Showing questions 31–60 of 308.

Catch the evergreen treesRead the answer and worked solution →Pop the forest typesRead the answer and worked solution →Find the real termRead the answer and worked solution →Slice the forest wordsRead the answer and worked solution →Wet or dry forestRead the answer and worked solution →Which yearRead the answer and worked solution →Type the numberRead the answer and worked solution →Forests bingoRead the answer and worked solution →Gross primary productivity minus respiration losses equals:Read the answer and worked solution →Annual net primary productivity of the whole biosphere is about:Read the answer and worked solution →Despite covering 70 per cent of the surface, oceans produce only how much of the biosphere's net primary productivity?Read the answer and worked solution →Earthworms breaking detritus into smaller particles is called:Read the answer and worked solution →Water-soluble inorganic nutrients going down into the soil and precipitating as unavailable salts is:Read the answer and worked solution →Release of inorganic nutrients from humus by microbes is called:Read the answer and worked solution →Decomposition is slower when detritus is rich in:Read the answer and worked solution →Less than what share of incident solar radiation is photosynthetically active radiation?Read the answer and worked solution →Plants capture only what share of PAR?Read the answer and worked solution →Decomposers that degrade dead organic matter are also called:Read the answer and worked solution →In an aquatic ecosystem, the major conduit for energy flow is the:Read the answer and worked solution →Energy transfer between trophic levels follows the:Read the answer and worked solution →Which ecological pyramid is always upright and can never be inverted?Read the answer and worked solution →The pyramid of biomass in the sea is generally:Read the answer and worked solution →The stable end community of succession, in near equilibrium with the environment, is the:Read the answer and worked solution →Succession starting on bare rock or newly cooled lava is:Read the answer and worked solution →Plant succession in wet areas is called:Read the answer and worked solution →Pioneer species in primary succession on rocks are usually:Read the answer and worked solution →Nutrient cycling is also called:Read the answer and worked solution →Carbon makes up what share of the dry weight of organisms?Read the answer and worked solution →What share of global carbon is dissolved in the oceans?Read the answer and worked solution →Robert Constanza's team priced ecosystem services at about how much a year?Read the answer and worked solution →

Worked practice questions

Catch the evergreen trees

Read exercise and reference answers
Items
  1. Matches the category
    Yes
    Item
    Rosewood
  2. Matches the category
    Yes
    Item
    Mahogany
  3. Matches the category
    Yes
    Item
    Aini
  4. Matches the category
    Yes
    Item
    White cedar
  5. Matches the category
    Yes
    Item
    Hollock
  6. Matches the category
    No
    Item
    Teak
  7. Matches the category
    No
    Item
    Sal
  8. Matches the category
    No
    Item
    Babool
  9. Matches the category
    No
    Item
    Khejri
Category
Evergreen tree
Instructions
Catch the trees of the evergreen forests. Let the deciduous and thorn trees fall.
_Source: syllabus Geography, India Physical Environment, Chapter 5, Natural Vegetation._

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Pop the forest types

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Other terms
  1. Tundra
  2. Savanna
  3. Taiga
Matching terms
  1. Evergreen
  2. Deciduous
  3. Thorn
  4. Montane
  5. Mangrove
Instructions
Pop the forest types found in India.
_Source: syllabus Geography, India Physical Environment, Chapter 5, Natural Vegetation._

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Find the real term

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Questions
  1. Correct
    Deodar
    Choices
    1. Deodar
    2. Deoder
    3. Diodar
  2. Correct
    Mangrove
    Choices
    1. Mangrov
    2. Mangrove
    3. Mangroove
  3. Correct
    Ramsar
    Choices
    1. Ramsaar
    2. Ramser
    3. Ramsar
  4. Correct
    Sholas
    Choices
    1. Sholas
    2. Shollas
    3. Sholaas
  5. Correct
    Deciduous
    Choices
    1. Deciduus
    2. Deciduous
    3. Decidious
  6. Correct
    Biosphere
    Choices
    1. Biospere
    2. Biosfere
    3. Biosphere
Instructions
Pick the lane with the real forest term. The other two are made up.
_Source: syllabus Geography, India Physical Environment, Chapter 5, Natural Vegetation._

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Science & TechnologyCurrent AffairsIndian GeographySoil & VegetationConservationEndangered SpeciesEnvironment BasicsNational Parks