Decomposition MCQ

Test your knowledge with important Decomposition MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Decomposition MCQs at Bissoy

• What environment is unfavorable for the process of decomposition?
  ক

  Warm

  খ

  Low temperature and anaerobic conditions

  গ

  Moist

  ঘ

  Having good humus
• What environment is favorable for the process of decomposition?
  ক

  Low temperature and anaerobic conditions

  খ

  High temperature

  গ

  Warm and moist

  ঘ

  Watery
• At what rate does decomposition occur when detritus is rich in lignin and chitin?
  ক

  Faster

  খ

  Neutral

  গ

  Moderate

  ঘ

  Slower
• At what rate does decomposition occur when detritus is rich in nitrogen and sugars?
  ক

  Slower

  খ

  Faster

  গ

  Moderate

  ঘ

  Neutral
• Along with oxygen what are the other components decomposition depend on?
  ক

  Oxygen

  খ

  Chemical composition of detritus

  গ

  Decomposers

  ঘ

  Leaching
• What does decomposition depend on?
  ক

  Oxygen

  খ

  Nitrogen

  গ

  Ammonia

  ঘ

  Carbon monoxide
• How many steps are involved in the process of decomposition?
  ক

  10

  খ

  2

  গ

  8

  ঘ

  5
• What is the process of release of inorganic substances both minerals and non-minerals from organic matter called?
  ক

  Fragmentation

  খ

  Mineralization

  গ

  Humification

  ঘ

  Leaching
• Which substances are formed along with humus due to the decomposition process?
  ক

  Organic substances

  খ

  Minerals

  গ

  Inorganic substance

  ঘ

  Fragments
• What is the percolation of the soluble substances formed due to decomposition called?
  ক

  Humification

  খ

  Leaching

  গ

  Mineralization

  ঘ

  Catabolism
• What is the dark amorphous organic matter rich in cellulose and lignin that is highly resistant to any microbial action and decomposes at a slower rate called?
  ক

  Fragments

  খ

  Enzymes

  গ

  Humus

  ঘ

  Minerals
• What is the process of the formation of a dark-colored amorphous substance called?
  ক

  Leaching

  খ

  Catabolism

  গ

  Fragmentation

  ঘ

  Humification
• What is the process called when detritivores feed on larger pieces and leave smaller fragments behind?
  ক

  Leaching

  খ

  Catabolism

  গ

  Fragmentation

  ঘ

  Mineralization
• What is the process of secretion of digestive enzymes by decomposers to convert insoluble complex organic molecules into simple soluble organic and inorganic molecules called?
  ক

  Fragmentation

  খ

  Decomposition

  গ

  Humification

  ঘ

  Catabolism
• Which of the following is an example of detritivore?
  ক

  Monkey

  খ

  Termites

  গ

  Elephant

  ঘ

  Flat-worm
• Which organisms carry out the fragmentation of detritus?
  ক

  Sponges

  খ

  Vertebrates

  গ

  Detritivores

  ঘ

  Zooplankton
• What are the complex organic remains such as dead animal remains, dead plant remains, and fecal matter called?
  ক

  Humus

  খ

  Mucus

  গ

  Excreta

  ঘ

  Detritus
• What is the process of break down complex organic matter into inorganic substances called?
  ক

  Organization

  খ

  Decomposition

  গ

  Production

  ঘ

  Consumption
• Which are the organisms called those who are responsible for the break down complex organic matter into inorganic substances?
  ক

  Decomposers

  খ

  Producers

  গ

  Consumers

  ঘ

  Herbivores
• Which organism is said to be a farmer’s friend?
  ক

  Rat

  খ

  Earthworm

  গ

  Bat

  ঘ

  Leopard