MCQ Questions for Class 12 Biology Chapter 14 Ecosystem with Answers Set-B

Ecosystem Class 12 Biology MCQs Questions with Answers

Check the below NCERT MCQ Questions for Class 12 Biology Chapter 14 Ecosystem with Answers Pdf free download. MCQ Questions for Class 12 Biology with Answers were prepared based on the latest exam pattern. We have Provided Ecosystem Class 12 Biology MCQs Questions with Answers to help students understand the concept very well.

Class 12 Biology Chapter 14 Quiz

Class 12 Biology Chapter 14 MCQ Online Test

You can refer to NCERT Solutions for Class 12 Biology Chapter 14 Ecosystem to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Ecosystem Class 12 Biology MCQ online test

Q1.	Ecological pyramids were first devised by:
	A.Charles Eltom
	B.R. Hesse
	C.R.A. Lindemann
	D.Justus von Liebig

Ans: Charles Eltom

Q2.	Which of the following ecosystem has highest gross primary productivity:
	A.Grassland
	B.Coral reefs
	C.Mangrooves
	D.Rainforests

Ans: Coral reefs

Q3.	In the phosphorus cycle, weathring makes phosophate available first to:
	A.Producers
	B.Decomposers
	C.Consumers
	D.None of these

Ans: Producers

Q4.	Which types of the following pyramid are never inverted?
	A.Pyramid of energy
	B.Pyramid of biomass
	C.Pyramid of number
	D.Pyramid of dry biomass

Ans: Pyramid of energy

Q5.	Biosphere means:
	A.Atmosphere
	B.Lithosphere and ionosphered
	C.Atmosphere, lithosphere and hydrosphere
	D.Hydrosphere lithosphere and ionsophere

Ans: Atmosphere, lithosphere and hydrosphere

Q6.	Best type of pyramid which is always true is:
	A.Pyramid or energy
	B.Pyramid of Biomass
	C.Pyramid of number
	D.Both (a) and (c)

Ans: Pyramid or energy

Q7.	Decomposers are:
	A.Autotrophs
	B.Autohetrotrophs
	C.Organotrophs
	D.Heterotrophs

Ans: Heterotrophs

Q8.	The largest ecosystem is :
	A.Forest ecosystem
	B.Marine ecosystem
	C.Pond ecosystem
	D.Grassland ecosystem

Ans: Marine ecosystem

Q9.	More than 70 of world freshwater is contain in:
	A.Antarctica
	B.Glaciers and mountains
	C.Greenland
	D.Polar ice

Ans: Greenland

Q10.	Which one of the following pair is mismatched?
	A.Prairies-Epiphytes
	B.Tundra-Permafrost
	C.Savannaha-Acacia trees
	D.Coniferous forests-Evergreen trees)

Ans: Prairies-Epiphytes

Q11.	Which of the following is the most stable ecosystem?
	A.Mountain
	B.Desert
	C.Forest
	D.Ocean

Ans: Desert

Q12.	Primary succession occurs in :
	A.Primary succession occurs
	B.Previously unoccupied area
	C.Both of the above
	D.None of these

Ans: Previously unoccupied area

Q13.	Which one of the following is not used for construction of ecological pyramid?
	A.Dry weight
	B.Number of individuals
	C.Rate of energy flow
	D.Fresh weight

Ans: Dry weight

Q14.	What is the main cause of extinction of some species in tropical forests?
	A.Deforestation
	B.Afforestation
	C.Pollution
	D.Soil erosion

Ans: Deforestation

Q15.	Ecology deals with:
	A.The arth and plants
	B.The relationship between organisms and their environment
	C.Economical growth of poor people
	D.The life under sea

Ans: The relationship between organisms and their environment

Q16.	Shola forests are found in :
	A.Eastern Coast of Orissa
	B.North East Himalayas
	C.Western Ghats (Kerala)
	D.Decian Plateau

Ans: Western Ghats (Kerala)

Q17.	Given below is one of the types of ecological pyramids. This type represents
	A.Pyramid of numbers in a grassland
	B.Pyramid of biomass in a follow land
	C.Pyramid of biomass in a lake
	D.Energy pyramid in a spring

Ans: Pyramid of biomass in a lake

Q18.	Energy transferred from one trophic level to another
	A.5%
	B.10%
	C.15%
	D.20%

Ans: 10%

Q19.	Maximum absorption of rainfall water is done by
	A.Tropical deciduous forest
	B.Tropical evergreen forest
	C.Tropical savannah
	D.Scrule forest

Ans: Tropical evergreen forest

Q20.	Which of the following is called as a detrivore?
	A.An animal feeding on decaying organic matter
	B.An animal feeding on a plant
	C.A plant feeding on an animal
	D.An animal feeding on another animal

Ans: An animal feeding on decaying organic matter

MCQ Questions for Class 12 Biology

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MCQ Questions for Class 12 Biology Chapter 14 Ecosystem with Answers

MCQ Questions for Class 12 Biology Chapter 14 Ecosystem with Answers Set-B

Ecosystem Class 12 Biology MCQs Questions with Answers

Class 12 Biology Chapter 14 Quiz

Class 12 Biology Chapter 14 MCQ Online Test

Ecosystem Class 12 Biology MCQ online test

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NCERT Solutions for Class 12 Biology

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