Environmental Studies Quiz Question with Answer


41. Deforestation generally decreases

  1. Rainfall
  2. Soil erosion
  3. Draught
  4. Global warming

42. Detritus food chain starts from

  1. Green plants
  2. Grass
  3. Dead organic matter
  4. Phytoplankton

43. Earthworms and bacteria are called

  1. Producers
  2. Consumers
  3. Decomposers
  4. None of these

44. 5th June is observed as

  1. World forest day
  2. World environment day
  3. World wildlife day
  4. World population day

45. Eutrophication means

  1. thermal change in water
  2. filling up of water body with aquatic due to extra nourishment
  3. solid waste
  4. none of the above

46. Example of omnivores is

  1. Lion
  2. Hawk
  3. Human
  4. Snake

47. Food chain always starts with

  1. Respiration
  2. Transpiration
  3. Nitrogen fixation
  4. Photosynthesis

48. Formation of ozone is

  1. oxidation reaction
  2. oxidation reaction
  3. photochemical reaction
  4. photochemical reaction

49. Hydrosphere includes

  1. Animals
  2. Soil
  3. Plants
  4. Water bodies

50. Important abiotic factors in ecosystems include which of the following?

  1. temperature
  2. water
  3. wind
  4. all of the above

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