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MCQs

Total Questions : 619 | Page 56 of 62 pages
Question 551. 50% of incident energy is lost due to:
  1.    Consumers
  2.    Producers
  3.    Microorganisms
  4.    Planktons
 Discuss Question
Answer: Option B. -> Producers
Answer: (b).Producers
Question 552. Which law states that, conversion of energy from one form to another is not 100% efficient?
  1.    First law of thermodynamics
  2.    Second law of thermodynamics
  3.    Energy flow
  4.    Biological system
 Discuss Question
Answer: Option B. -> Second law of thermodynamics
Answer: (b).Second law of thermodynamics
Question 553. What is ultimate source of energy in an ecosystem?
  1.    Sunlight
  2.    Nutrients
  3.    Food
  4.    Water
 Discuss Question
Answer: Option A. -> Sunlight
Answer: (a).Sunlight
Question 554. Applied and basic aspects of environmental science require a solid foundation in
  1.    Anthropogenic
  2.    Natural Sciences
  3.    Multi-disciplinary nature
  4.    All of Above
 Discuss Question
Answer: Option B. -> Natural Sciences
Answer: (b).Natural Sciences
Question 555. How many types of food chain are there?
  1.    3
  2.    2
  3.    7
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 556. Which food chain has a mixed group in terms of trophic levels?
  1.    Grazing food chain
  2.    Detritus food chain
  3.    Biological system
  4.    Tropical Level
 Discuss Question
Answer: Option B. -> Detritus food chain
Answer: (b).Detritus food chain
Question 557. What are examples of detrivores?
  1.    Estuaries and mangroves
  2.    Ponds
  3.    Rainforests
  4.    Deserts
 Discuss Question
Answer: Option A. -> Estuaries and mangroves
Answer: (a).Estuaries and mangroves
Question 558. What does an ecosystems depend on ?
  1.    Solar Energy
  2.    Consumers
  3.    Producers
  4.    Food chain
 Discuss Question
Answer: Option A. -> Solar Energy
Answer: (a).Solar Energy
Question 559. Ecosystems, having detritus food chain depends on
  1.    Inorganic matters
  2.    Organic matters
  3.    Microorganisms
  4.    Dead plants
 Discuss Question
Answer: Option B. -> Organic matters
Answer: (b).Organic matters
Question 560. What is percentage of S, Ca and K ?
  1.    0.02
  2.    0.03
  3.    0.07
  4.    0.08
 Discuss Question
Answer: Option B. -> 0.03
Answer: (b).0.03

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