Environment & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
21. Which one of the following plants is effective in reducing water pollution and is also useful for producing biogas? (UPSC Prelims 1990)
22. What is the rank of Thar desert in the world as per the total area coverage?
23. Which of the following biotic interaction is characterized by the loss to one specie and no effect on other specie?
24. Koundinya Wildlife Sanctuary is located in which of the following states?
25. Which of the following statements about Primary producers are correct?
1) Primary producers are basically green plants.
2) They synthesise carbohydrates from simple inorganic raw materials.
3) Primary producers are absent in Aquatic Ecosystem.
Select the correct answer from the codes given below:
1) Primary producers are basically green plants.
2) They synthesise carbohydrates from simple inorganic raw materials.
3) Primary producers are absent in Aquatic Ecosystem.
Select the correct answer from the codes given below:
26. Which of the following statements are correct about the type of communities?
1. Major Communities are large-sized, well organized, relatively independent and depend on the sun’s energy.
2. Minor Communities are dependent on neighbouring communities and are often called societies.
Select the correct option from the codes given below:
1. Major Communities are large-sized, well organized, relatively independent and depend on the sun’s energy.
2. Minor Communities are dependent on neighbouring communities and are often called societies.
Select the correct option from the codes given below:
27. Which of the following are the ways in which nitrogen fixation on earth can take place?
1. By microorganisms like bacteria and blue-green algae.
2. By man, using industrial processes like fertilizer factories.
3. To a limited extent by atmospheric phenomenon such as thunder and lighting.
Select the correct option from the codes given below:
1. By microorganisms like bacteria and blue-green algae.
2. By man, using industrial processes like fertilizer factories.
3. To a limited extent by atmospheric phenomenon such as thunder and lighting.
Select the correct option from the codes given below:
28. Which of the following statements are correct with respect to Sedimentary Cycle?
1. Phosphorus, calcium and magnesium circulate by means of the sedimentary cycle.
2. The agents of sedimentary cycle include erosion, sedimentation, mountain building, volcanic activity and biological transport through the excreta of marine birds.
Select the correct option from the codes given below:
1. Phosphorus, calcium and magnesium circulate by means of the sedimentary cycle.
2. The agents of sedimentary cycle include erosion, sedimentation, mountain building, volcanic activity and biological transport through the excreta of marine birds.
Select the correct option from the codes given below:
29. Which of the following are the effects of Eutrophication?
1. Eutrophication creates a detritus layer in the ponds & lakes and produces successively shallower depth of surface water.
2. The water body is eventually reduced into marsh whose plant community is transformed from an aquatic environment to recognizable terrestrial ecosystem.
Select the correct option from the codes given below:
1. Eutrophication creates a detritus layer in the ponds & lakes and produces successively shallower depth of surface water.
2. The water body is eventually reduced into marsh whose plant community is transformed from an aquatic environment to recognizable terrestrial ecosystem.
Select the correct option from the codes given below:
30. The Siau Island tarsier was added to the list of the 25 Most Endangered Primates in which of the following year?
