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 Ecosystem CBSE Class 12 Biology MCQ Questions with Answer Keys.
Ecosystem MCQ Questions for Chapter 14 Question No 11:
Ecology deals with
Option A : The earth and plants
Option B : The relationship between organisms and their environment
Option C : Economical growth of poor people
Option D : The life under sea
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Option B : The relationship between organisms and their environment
Ecosystem MCQ Questions for Chapter 14 Question No 12:
An inverted pyramid of biomass can be found in which ecosystem?
Option A : Forest
Option B : Marine
Option C : Grassland
Option D : Tundra
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Option B : Marine
Ecosystem MCQ Questions for Chapter 14 Question No 13:
The rate of conversation of light energy into chemical energy of organic molecules in an ecosystem is
Option A : Net primary productivity
Option B : Gross primary productivity
Option C : Secondary productivity
Option D : Gross secondary productivity
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Option C : Gross primary productivity
Ecosystem MCQ Questions for Chapter 14 Question No 14:
The process of mineralisation by micro organisms help in the release of
Option A : Inorganic nutrients from humus
Option B : Both organic and inorganic nutrients from detritus
Option C : Organic nutrients from humus
Option D : Inorganic nutrients from detritus and formation of humus
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Option A : Inorganic nutrients from humus
Ecosystem MCQ Questions for Chapter 14 Question No 15:
Breakdown of detritus by microbial enzymes into simple forms is called?
Option A : Mineralization
Option B : Fragmentation
Option C : Catabolism
Option D : Leaching
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Option B : Fragmentation
Ecosystem MCQ Questions for Chapter 14 Question No 16:
Pyramid of numbers is
Option A : Always upright
Option B : Always inverted
Option C : Either upright or inverted
Option D : Neither upright nor inverted
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Option C : Either upright or inverted
Ecosystem MCQ Questions for Chapter 14 Question No 17:
Approximately how much of the solar energy that falls on the leaves of a plant is converted to chemical energy by photosynthesis?
Option A : Less than 1%
Option B : 2-10 %
Option C : 30 %
Option D : 50%
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Option B : 2-10 %
Ecosystem MCQ Questions for Chapter 14 Question No 18:
Which of the following is the most stable ecosystem?
Option A : Forest
Option B : Desert
Option C : Mountain
Option D : Ocean
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Option D : Ocean
Ecosystem MCQ Questions for Chapter 14 Question No 19:
Maximum absorption of rainfall water is done by
Option A : Tropical deciduous forest
Option B : Tropical evergreen forest
Option C : Tropical savannah
Option D : Scrule forest
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Option B : Tropical evergreen forest
Ecosystem MCQ Questions for Chapter 14 Question No 20:
The most abundant element present in the plants is
Option A : Nitrogen
Option B : Manganese
Option C : Iron
Option D : Carbon
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Option D : Carbon
