NCERT - Ecosystem Questions and Answers for Class 12 | GkSeries

Sports GK Questions and Answers 2024 (Latest Updated)

Awards & Honours GK Questions 2024 (Latest Updated)

Questions
31 In a food chain of grassland ecosystem the top consumers are
1 Herbivorous
2 Carnivorous
3 Bacteria
4 Either carnivorous or herbivorous

Answer: Carnivorous
32 In which of the following form(s), the waster products are discharged into the biosphere?
1 Gaseous
2 Liquid
3 Solid
4 All of the above

Answer: All of the above
Advertisement
Article and Schedule Quiz Start Test!
DOWNLOAD CURRENT AFFAIRS PDF FROM APP
33 Microbes that break down the complex organic matter into simple substances like carbon, nitrogen, water etc. are
1 Producers
2 Decomposers
3 Consumers
4 SymbiontsNone of these

Answer: Decomposers
34 MAB stands for
1 Man and biosphere
2 Man, antibiotics and bacteria
3 Man and biotic community
4 Mayer, Anderson and Bisby

Answer: Man and biosphere
35 The type of ecosystem with the highest mean plant productivity is
1 Tropical rain forest
2 Temperate grassland
3 Desert
4 Tundra

Answer: Tropical rain forest
36 Actively moving organism in aquatic ecosystem
1 Benthos
2 Phytoplankton
3 Zoo plankton
4 Nekton

Answer: Nekton
37 Xeric environment is characterized by
1 High precipitation
2 Low atmospheric humidity
3 Extremes of temperatures
4 High rate of vaporization

Answer: Low atmospheric humidity
38 Ecosystem is smallest unit of
1 Ionosphere
2 Lithosphere
3 Biosphere
4 Mesosphere

Answer: Biosphere
39 The ecological pyramid which can be inverted in a tree eco-system is
1 Pyramid of Number
2 Pyramid of Energy
3 Pyramid of Biomass
4 both (b) and (c)

Answer: Pyramid of Number
40 Which of the following is primary consumer?
1 Producer
2 Carnivore
3 Top carnivore
4 Herbivore

Answer: Herbivore
41 Which of the following groups is absolutely essential functional component of the ecosystem?
1 Producers
2 Producers and herbivores
3 Producers and detritivores
4 Detritivores

Answer: Producers and detritivores
42 In an aquatic ecosystem, the trophic level equivalent to cows in grasslands is
1 Nekton
2 Zooplankton
3 Phytoplankton
4 Benthos

Answer: Zooplankton
43 Species that occur in different geographical regions separated by special barrier
1 Allopatric
2 Sympatric
3 Sibling
4 None of the above

Answer: Allopatric
44 Deserts, grasslands, forests and tundra are the examples of
1 Biomes
2 Biogeographical regions
3 Ecosystems
4 Ecosystems

Answer: Biomes
45 Biotic factors refer to
1 Gases produced by industries
2 Nutrient-deficient soils
3 Living organisms
4 Fossil fuel

Answer: Living organisms

Random GK Questions

Q. Laws of heredity was put forward by
Q. Chromosome number is
Q. The Pension of a High Court Judge is charged on the
Q. Which of the following alkali metals has highest specific heat ?
Q. An element of atomic number 29 belongs to
Q. Section 8 of Hindu Marriage Act, 1955 is related to:

Chapters

Assam Direct Recruitment Test Series

Teacher Eligibility Test

Assam Direct Recruitment Test Series