Environment and Ecology
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Environment and Ecology questions with answers

2,222 multiple-choice questions. Open any question for its answer and explanation.

Questions asked in State PSC and UPSC prelims, by topic. Each topic also has notes to read.

Read the notes: Ecology →

  1. Plants that grow in seashores are called as :Asked in APPSC Group 1 Prelims 2010
  2. Which one of the following statements with regard to growth of coral reefs is not correct?Asked in UPSC CDS 2 2018
  3. Wetland day is observed onAsked in UPPSC Upper Mains 2008
  4. The term wetland implies:Asked in UPSC Geoscientist 2020
  5. Bog ecosystem wetland receives water only from:Asked in UPSC Geoscientist 2020
  6. Which one among the following is a peat- producing wetland?Asked in UPSC Geoscientist 2021
  7. Which one among the following is NOT a characteristic feature of Mangrove?Asked in UPSC Geoscientist 2021
  8. Which of the following are called 'benthos'?Asked in UPSC Geoscientist 2022
  9. The terms 'oligotrophic', 'mesotrophic' and 'eutrophic' are associated with the evolution ofAsked in UPSC Geoscientist 2022
  10. The term 'lotic facies' is used to denote water ofAsked in UPSC Geoscientist 2022
  11. Which one of the following is not an essential factor for the development of peat bog?Asked in UPSC Geoscientist 2022
  12. Which one of the following is not correct about marshes?Asked in UPSC Geoscientist 2022
  13. Mangroves represent :Asked in UPSC Geoscientist 2024
  14. Which one among the following statements regarding Ecotone is correct ?Asked in UPSC Geoscientist 2024
  15. Which of the following statements are correct regarding coral reefs? 1. Corallite is the house of the corals 2. Coral are living organisms 3. Reefs are uncemented and soft structure of calcium carbonate 4. Reefs are cemented and hard structure of calcium carbonateAsked in GPSC Prelims CSP 2 2019
  16. Shallow lake with rich organic products are called :Asked in HPPSC HPAS Prelims 2011
  17. World's most problematic aquatic weed is _______.Asked in JPSC CS Prelims 2021
  18. Alkaline soils can be improvedAsked in JPSC CS Prelims 2024
  19. In deep ponds and lakes, which one of the following vertical zones receives least light penetration?Asked in UPSC Geoscientist 2023
  20. Which of the following are characteristics of Coral Reefs ? (a) These are the oldest living communities on Earth. (b) It is a high biomass producer. (c) It is a rich floral and fauna diversity. (d) These are shallow water tropical ecosystems. Which of the above statement/s is/are correct ?Asked in MPSC CS Prelims 2022
  21. Halophytes are the types of plants that prefer to grow on :Asked in OPSC CS Prelims 2015
  22. Consider the following statements regarding an aquatic ecosystem: (1) The shallow water zone around the edge of the lake is the littoral zone. (2) Limnetic zone is the open zone where phytoplankton grows in abundance (3) Profundal zone is the dark zone where the light cannot reach. Which of the statements given above is/are correct?Asked in OPSC CS Prelims 2023
  23. Consider the following statements about an estuary : 1. An estuary is the place where the river fresh water meets with ocean water. 2. This area is highly productive. 3. This area is highly unproductive. Which of the above statements is/are true ?Asked in PPSC CS Prelims 2018
  24. The plant type which colours the ocean surface water red isAsked in TNPSC CS Prelims 2015
  25. With reference to Eutrophication, which of the following statements is/are correct?Asked in UPPCS Prelims 2019