If you are preparing for CBSE Class 12 Board Exam Term 1 which will be an objective type questions paper, then you need to practice multiple choice questions of Class 12 Biology Chapterwise. In this article of AKVTutorials, you will get MCQ Questions for Class 12 Physics Chapter 14 Ecosystem with Answer Keys.
MCQ Questions for Class 12 Biology Chapter 14 Question No 1:
Which of the following is called as a detrivore?
Option A : An Animal feeding on decaying organic matter
Option B : An animal feeding on a plant
Option C : A plant feeding on an animal
Option D : An animal feeding on another animal
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Option A : An Animal feeding on decaying organic matter
MCQ Questions for Class 12 Biology Chapter 14 Question No 2:
Which of the following is expected to have the highest value (gm/m2/yr) in a grassland ecosystem?
Option A : Tertiary production
Option B : Gross production
Option C : Net production
Option D : Secondary production
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Option B : Gross production
MCQ Questions for Class 12 Biology Chapter 14 Question No 3:
Concentration of nitrogen remains constant by
Option A : Nitrogen cycle
Option B : Thundering and lightning
Option C : Enzymes
Option D : Both (a) and (b)
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Option D : Both (a) and (b)
MCQ Questions for Class 12 Biology Chapter 14 Question No 4:
Bacterial role in carbon cycle is
Option A : Chemosynthesis
Option B : Photosynthesis
Option C : Breaking of organic matter
Option D : Assimilation of nitrogen compounds
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Option C : Breaking of organic matter
MCQ Questions for Class 12 Biology Chapter 14 Question No 5:
Zone of atmosphere near the ground is
Option A : Troposphere
Option B : Stratosphere
Option C : Homosphere
Option D : All of these
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Option A : Troposphere
MCQ Questions for Class 12 Biology Chapter 14 Question No 6:
Ultraviolent radiation from sunlight causes a reaction which produces
Option A : O3
Option B : SO2
Option C : CO
Option D : CH4
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Option A : O3
MCQ Questions for Class 12 Biology Chapter 14 Question No 7:
Xerophyte contains
Option A : Deep roots
Option B : Sunken stomata
Option C : Thick cuticle
Option D : All of these
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Option A : All of these
MCQ Questions for Class 12 Biology Chapter 14 Question No 8:
During food chain maximum energy is stored in
Option A : Producers
Option B : Decomposers
Option C : Herbivoures
Option D : Carnivourse
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Option A : Producers
MCQ Questions for Class 12 Biology Chapter 14 Question No 9:
Which of the following ecosystem has highest gross primary productivity
Option A : Grassland
Option B : Coral reefs
Option C : Mangrooves
Option D : Rainforests
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Option B : Coral reefs
MCQ Questions for Class 12 Biology Chapter 14 Question No 10:
Biosphere means
Option A : Atmosphere
Option B : Lithosphere and ionsophered
Option C : Atmosphere, lithosphere and hydrosphere
Option D : Hydrosphere, Lithosphere and ionsophere
Show/Hide Answer
Option C : Atmosphere, lithosphere and hydrosphere
