CBSE Class 11 Sociology Environment and Society MCQs

Question : The adverse effect of modern agriculture is
a. Water pollution
b. Soil degradation
c. Water logging
d. All of the above

Answer : B

Question : Energy flow in an ecosystem is
a. Bidirectional
b. Unidirectional
c. Multidirectional
d. All rounds

Answer : C

Question : In an ecotone, the species which become abundant are called:
a. Edge species
b. Keystone species
c. Endemic species
d. Foster species

Answer :  A

Question : Which of the ecological pyramid is always upright
a. Pyramid of numbers
b. Pyramid of biomass
c. Pyramid of energy
d. All of the above

Answer :   C

Question : The burning of fossil fuels releases a large amount of
a. Nitrogen into air
b. Sulphur into air
c. Carbon dioxide into air
d. Oxygen into air

Answer :   B

Question : The word ‘Environment’ is derived from
a. Greek
b. French
c. Spanish
d. English

Answer : B

Question : Mass of living matter at a trophic level in an area at any given time is called
a. Standing state
b. Standing crop
c. Humus
d. Detritus

Answer : B

Question : Which of these organisms has a diet consisting only of plant matter
a. Omnivores
b. Carnivores
c. Herbivores
d. Insectivores

Answer : C

Question : Energy flow in an ecosystem is
a. Bidirectional
b. Unidirectional
c. Multidirectional
d. All rounds

Answer : C

Question : Which of the following is not influenced by human activities?
a. Destruction of mangroves and wetlands
b. Depletion of ground water
c. Increased extinction rate of species
d. None of the above

Answer : D

Question : A group of living organisms of the same kind living in the same place and at the same time refers to a
a. Community
b. Species
c. Population
d. Consumers

Answer : C

Question : Which one of the following is not a gaseous biogeochemical cycle
a. Nitrogen cycle
b. Carbon cycle
c. Sulphur cycle
d. Phosphorus cycle

Answer : D

Question : The species restricted to be present in one region are called
a. Edge species
b. Endemic species
c. Endangered species
d. Keystone species

Answer : B

Question : Which of the ecological pyramid is always upright
a. Pyramid of numbers
b. Pyramid of biomass
c. Pyramid of energy
d. All of the above

Answer : C

Question : The upright pyramid of numbers is absent in
a. Lake
b. Pond
c. Grasslands
d. Forests

Answer : D

Question : The term ‘Environment’ has been derived from the French word which means to encircle or surround
a. Environ
b. Oikos
c. Geo
d. Aqua

Answer : A

Question : A product of photosynthesis is
a. Carbon dioxide
b. Water
c. Oxygen
d. Chlorophyll

Answer : C

Question : If in a population, natality is balanced by mortality, then there will be
a. Decrease in population growth
b. Increase in population growth
c. Zero population growth
d. Over population

Answer : C

Question : The impact of construction of dams
a. Submerged forest
b. Loss of wild life habitat
c. Damages downstream ecosystem
d. All of the above

Answer : D

Question : The final stable community in ecological succession is
a. Climax
b. Pioneer
c. Sere
d. Carnivores

Answer : A

Question : Sustainable development means
a. meeting present needs without compromising on future needs
b. progress of human beings
c. balance between human needs and the ability of earth to provide the resources
d. all of the above

Answer : C

Question : The second trophic level in a lake is
a. Phytoplankton
b. Zooplanktons
c. Fishes
d. Benthos

Answer : B

Question : The true end of any food chain is the
a. Decomposer
b. Predator
c. Consumer
d. Human

Answer : A

Question : In a pyramid of numbers in grassland ecosystems, the largest population is that of
a. Herbivores
b. Primary consumers
c. Secondary consumer
d. Producers

Answer : A

Question : Which of the following is the most environmental friendly agricultural practice?
a. Using chemical fertilizers
b. Using insecticides
c. Organic farming
d. None of the above

Answer : C

Question : A product of photosynthesis is
a. Carbon dioxide
b. Water
c. Oxygen
d. Chlorophyll

Answer : C

Question : Resources which are directly derived from nature are referred to as
a. Organic resources
b. Natural resources
c. Man made resources
d. None of the above

Answer : B