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MCQs

Total Questions : 619 | Page 9 of 62 pages
Question 81. How many types of aquatic ecosystems are there?
  1.    One
  2.    Two
  3.    Three
  4.    Four
 Discuss Question
Answer: Option B. -> Two
Answer: (b).Two
Question 82. Where can we find both running water as well as stagnant water?
  1.    Marine ecosystems
  2.    Wetlands
  3.    Coral reefs
  4.    Freshwater ecosystems
 Discuss Question
Answer: Option D. -> Freshwater ecosystems
Answer: (d).Freshwater ecosystems
Question 83. What made organisms to build their ecosystem in quatic?
  1.    Curiosity
  2.    Evolution
  3.    Force from other organisms
  4.    Increase in water level
 Discuss Question
Answer: Option B. -> Evolution
Answer: (b).Evolution
Question 84. Where plants and animals live in aquatic ecosystems?
  1.    Water
  2.    Land
  3.    Air
  4.    Fire
 Discuss Question
Answer: Option A. -> Water
Answer: (a).Water
Question 85. In which of the following we can see fluctuation in the water level dramatically in different season?
  1.    Coral reefs
  2.    Brackish water
  3.    Wetlands
  4.    Deep oceans
 Discuss Question
Answer: Option C. -> Wetlands
Answer: (c).Wetlands
Question 86. What is altitude of troposphere?
  1.    7km
  2.    8km
  3.    9km
  4.    10km
 Discuss Question
Answer: Option B. -> 8km
Answer: (b).8km
Question 87. What is altitude of menopause?
  1.    80 km
  2.    45 km
  3.    50 km
  4.    90 km
 Discuss Question
Answer: Option A. -> 80 km
Answer: (a).80 km
Question 88. What is outer limit of stratosphere?
  1.    30 km
  2.    50 km
  3.    60 km
  4.    40 km
 Discuss Question
Answer: Option B. -> 50 km
Answer: (b).50 km
Question 89. Water enters atmosphere by
  1.    Filtration
  2.    Evaporation
  3.    Evapo-transpiration
  4.    Biosphere
 Discuss Question
Answer: Option B. -> Evaporation
Answer: (b).Evaporation
Question 90. What is percentages of N₂ in atmosphere?
  1.    0.7808
  2.    0.77
  3.    0.79
  4.    0.8
 Discuss Question
Answer: Option A. -> 0.7808
Answer: (a).0.7808

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