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MCQs

Total Questions : 619 | Page 8 of 62 pages
Question 71. Food webs derive their energy from sunlight.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 72. In which of the following we can have more than one source of organisms for energy?
  1.    Food chain
  2.    Food web
  3.    Food circle
  4.    Food rotation
 Discuss Question
Answer: Option B. -> Food web
Answer: (b).Food web
Question 73. Why large sharks remain in the highest trophic level in the aquatic food web?
  1.    Because large sharks are predators
  2.    Because large sharks are top predators
  3.    Because large sharks are phytoplankton
  4.    Because large sharks are zooplankton
 Discuss Question
Answer: Option B. -> Because large sharks are top predators
Answer: (b).Because large sharks are top predators
Question 74. Which of the following is the highest trophic level organism in grassland food web?
  1.    Grass
  2.    Grasshopper
  3.    Lizard
  4.    Hawk
 Discuss Question
Answer: Option D. -> Hawk
Answer: (d).Hawk
Question 75. Which of the following is correct order of food web for aquatic food web?
  1.    Diatoms->pteropods->lantern fish->squid->marlin
  2.    Diatoms->lantern fish->squid->marlin->pteropods
  3.    Lantern fish-> diatoms-> squid-> marlin->pteropods
  4.    Lantern fish-> diatoms-> squid-> pteropods-> marlin
 Discuss Question
Answer: Option A. -> Diatoms->pteropods->lantern fish->squid->marlin
Answer: (a).Diatoms->pteropods->lantern fish->squid->marlin
Question 76. Which ecosystem are the grazing areas of many rural communities?
  1.    Tropical evergreen
  2.    Tropical deciduous
  3.    Grassland
  4.    Desert
 Discuss Question
Answer: Option C. -> Grassland
Answer: (c).Grassland
Question 77. How grassland converted into flat stubs?
  1.    By over grazing
  2.    By less grazing
  3.    By climatic changes
  4.    By less water
 Discuss Question
Answer: Option A. -> By over grazing
Answer: (a).By over grazing
Question 78. What is stored to feed cattle if there is no grass during summer to cattle?
  1.    Vegetables
  2.    Chemical manures
  3.    Fodder
  4.    Water
 Discuss Question
Answer: Option C. -> Fodder
Answer: (c).Fodder
Question 79. Why rotational grazing pattern established?
  1.    To preserve grassland ecosystem
  2.    To destroy grassland ecosystem
  3.    To graze in the tropical rain forests
  4.    To grow grass in grassland ecosystem
 Discuss Question
Answer: Option A. -> To preserve grassland ecosystem
Answer: (a).To preserve grassland ecosystem
Question 80. How many percent of grassland covered in terms of permanent pastures in India?
  1.    2.7%
  2.    3.7%
  3.    4.7%
  4.    5.5%
 Discuss Question
Answer: Option B. -> 3.7%
Answer: (b).3.7%

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