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MCQs

Total Questions : 223 | Page 9 of 23 pages
Question 81. The zooplanktons in the southern oceans are dominated by a 5cm long shrimps like
  1.    Krills
  2.    Fishes
  3.    Penguins
  4.    Seals
 Discuss Question
Answer: Option A. -> Krills
Answer: (a).Krills
Question 82. What is the best way to preserve genes?
  1.    Gene bank
  2.    Protection to plant growing in their natural environment
  3.    Artifical Equipements
  4.    All of these
 Discuss Question
Answer: Option B. -> Protection to plant growing in their natural environment
Answer: (b).Protection to plant growing in their natural environment
Question 83. Which ocean has cold water and rich in life?
  1.    Antarctica
  2.    Pacific Ocean
  3.    Southern Ocean
  4.    Atlantic Ocean
 Discuss Question
Answer: Option C. -> Southern Ocean
Answer: (c).Southern Ocean
Question 84. What allows the high yield of phytoplankton in the southern oceans?
  1.    Constant Photosynthesis
  2.    Eutrophication
  3.    Infiltration
  4.    All of these
 Discuss Question
Answer: Option A. -> Constant Photosynthesis
Answer: (a).Constant Photosynthesis
Question 85. What determines the relative percentages of sand, silt and clay in the soil?
  1.    Tropic
  2.    Drainage
  3.    Texture
  4.    Weathering
 Discuss Question
Answer: Option C. -> Texture
Answer: (c).Texture
Question 86. The dense population which organism gives the ocean a reflection of pink color?
  1.    Phytoplantons
  2.    Zooplankton
  3.    Krills
  4.    Seals
 Discuss Question
Answer: Option C. -> Krills
Answer: (c).Krills
Question 87. What is the source of food for krills?
  1.    Zooplankton
  2.    Phytoplantons
  3.    Fishes
  4.    Photosynthesis
 Discuss Question
Answer: Option B. -> Phytoplantons
Answer: (b).Phytoplantons
Question 88. What is the average birth rate in developing countries?
  1.    26 or 29 per 1000
  2.    25 or 27 per 1000
  3.    26 or 28 per 1000
  4.    26 or 27 per 1000
 Discuss Question
Answer: Option C. -> 26 or 28 per 1000
Answer: (c).26 or 28 per 1000
Question 89. What is the average birth rate in developed countries?
  1.    12-or 18 per 1000
  2.    12 or 16 per 1000
  3.    10 or 13 per 1000
  4.    12 or 13 per 1000
 Discuss Question
Answer: Option D. -> 12 or 13 per 1000
Answer: (d).12 or 13 per 1000
Question 90. Krills are the major source of food in
  1.    Southern Ocean
  2.    Antarctica
  3.    Both a and b
  4.    All of these
 Discuss Question
Answer: Option C. -> Both a and b
Answer: (c).Both a and b

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