Science Environment And Technology - Yearwise Questions - Environment

Posted on May 15th, 2020 in Paper IV : General Studies II
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Science Environment And Technology – Yearwise Questions – Environment – W.B.C.S. Mains Examination.

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WBCS Main Question Paper – 2019

The Thermosphere starts from Earth’s surface at a distance of
(A) 80 Km
(B) 85 Km
(C) 100 Km
(D) 125 Km
Loss of water is maximum from
(A) leaf surface
(B) soil surface
(C) root
(D) stem surface
The following bacteria may be used to mitigate oil spill:
(A) Bacillus
(B) Pseudomonas
(C) E coli
(D) Nitrobacter
The following gas maybe involved in stone concer:
(A) N2
(B) SO2
(C) CO2
(D) H2S
The maximum width of tropopause is
(average of 9 km – poles,17 km – Equator)
(A) 10 Km
(B) 15 Km
(C) 20 Km
(D) 25 Km
The following name is associated with rain water harvesting:
(Waterman of India – Rajasthan )
(A) Rajendra Singh
(B) Baba Amte
(C) S. C. Nair
(D) Medha Patkar
DDT does not contain
(A) C
(B) H
(C) P
(D) Cl
Silent Valley became national park in the year
(A) 1980
(B) 1984
(C) 1988
(D) 1990
The following is a sedentary cycle:
(A) P cycle
(B) N2 cycle
(C) C cycle
(D) O2 cycle
Fluoride in environment primarily comes from
(A) topaz
(B) apatite
(C) fluorite
(D) phosphorite
Habitats resulting from lava flow is an example of
(A) primary succession
(B) secondary succession
(C) autogenic succession
(D) allogenic succession
The Disaster Management Act was enacted
(A) 2000
(B) 2003
(C) 2005
(D) 2010
What is ‘Arribada’?
(A) Mass Nestling of Olive Ridley
(B) Setting up a habitat by Red Panda
(C) Colony formation by Penguin
(D) None of the above
Where is the shola grassland found in India?
(A) Western Ghats
(B) Sundarban
(C) Andaman-Nicobar
(D) Himalayas
The fresh water percentage of Earth is
(A) 1%
(B) 2.5%
(C) 5%
(D) 10%
Which of the Indian Lake possess 20% of India’s sea-grass distribution?
(A) Chilka Lake
(B) Loktak Lake
(C) Dal Lake
(D) Mansar Lake
What is Plankton?
(A) Large plants in water.
(B) Microscopic floating organisms Plants and animals.
(C) Bottom dwelling aquatic organisms
(D) None of the above
Biotic environment includes
(A) Consumers
(B) Decomposers
(C) Producers
(D) All of the above
What is Incinerator?
(A) Furnace used for burning solid waste.
(B) Furnace used for treating liquid waste.
(C) Both (A) and (B)
(D) None of the above
An ecosystem consists of
(A) population.
(B) a biotic community.
(C) a population and its non-living elements.
(D) a biotic community and its non-living elements
Decomposers which specifically act on the fecal matter of other
organisms are called
(A) Coprophagic
(B) Heterophagic
(C) Allophagic
(D) Paraphagic
Major cause of Ozone depletion is due to which chemical?
(A) Chloro Fluoro Carbons (CFC)
(B) Polyphenols
(C) Dioxins
(D) Rayon
The Biodiversity Act was passed in
(A) 2000
(B) 2002
(C) 2004
(D) 2008
Bengal Smoke Nuisance Act came up for the first time in
(A) 1900
(B) 1905
(C) 1950
(D) 1978
The green bench in Kolkata High Court was established in
(A) 1990
(B) 1996
(C) 1997
(D) 1998
Roof top water harvesting is highest in
(A) China
(B) Brazil
(C) Ghana
(D) India
The activated sludge treatment is carried out by
(A) high temperature
(B) acidification
(C) microbes
(D) moisture
The electric arc furnace is used for recycling of
(A) Cu
(B) Zn
(C) Fe
(D) Cr
CITES became effective from the year
(Washington, D.C.)
(A) 1970
(B) 1975 (1st July)
(C) 1980
(D) 1985
The country where paper recycling was initiated in the world is
(A) UK
(B) USA (1874)
(C) Germany
(D) France
Mulching prevents the loss of
(A) microbes
(B) moisture
(C) mineral
(D) organic matter
The following waste comes under red category:
(A) metal
(B) drug
(C) oil waste
(D) food waste
The disinfection of drinking water by municipalities is mostly by
(A) Chlorination
(B) Bromination
(C) Boiling
(D) UV radiation
Indian Board of Wildlife was established in
(A) 1932
(B) 1952
(C) 1962
(D) 1972
Bhagabatpur project is for breeding
(A) Marsh Crocodile
(B) Tigers
(C) Black buck
(D) Dholes
Maximum energy consumption in Asia is by
(A) India
(B) China
(C) Japan
(D) Pakistan
X-ray films are a source of which of the following gas?
(A) SO2
(B) CO2
(C) NO2
(D) SO3
Below, which of the following pH in rain regarded as ‘acid rain’?
(A) 7
(B) 7.3
(C) 5.6
(D) 6
What is the primary standard level for carbon monoxide for assuring air quality?
(A) 10 ppm
(B) 90 ppm
(C) 1 ppm
(D) 9 ppm
Which is the most abundant hydrocarbon in the atmosphere?
(A) Methane
(B) Carbonyl sulphide
(C) Ethane
(D) None of the above
Which is the most abundant greenhouse gas
in the atmosphere?
(A) Carbon dioxide
(B) Water vapour
(C) Methane
(D) Nitrogen
Which of the following pollutant is the major contributor to
photochemical smog?
(A) Peroxynitrates
(B) Hydro peroxides
(C) Nitrogen dioxide
(D) Ozone
Which of the following is the largest sink for carbon dioxide gas?
(A) Forests
(B) Oceans
(C) Ice sheets
(D) Grasslands

WBCS Main Question Paper – 2018

During Bhopal gas tragedy, the harmful gas evolved was
a) Phosgene
b) Ammonia
c) Carbyl amine
d) Methyl isocyanate
Which ray strikes the earth due to depletion of O3 layer?
a) Infrared
b) Microwave
c) Visible
d) Ultraviolet
BOD value will be maximum in
a) waste water
b) river water
c) rain water
d) sewage water
Which one of the following is responsible for depletion of O3 layer ?
a) CO2
b) Chlorofluoro Carbon
c) CH4
d) None of the above
Which one of the following gases reacts with hemoglobin and produces
toxic effect?
a) CO2
b) SO2
c) NO2
d) CO
Which one of the following statements is false?
a) River pollution is due to industrial and domestic sewage discharge
b) Surface water contains a lot of organic matters and nutrients
c) Oil slick in sea increases dissolved oxygen content
d) Oil spill in sea causes heavy damage to fishery
Which one is the major element of the following present in Earth’s Crust?
a) Si
b) Al
c) Ca
d) Na
The aim of rain water harvesting is to
a) recharge groundwater
b) avoid floods
c) control soil erosion
d) conservation of freshwater
Mention the main constituent of biogas and natural gas.
a) Ethane
b) Methane
c) Propane
d) Butane
In which ecosystem, grassland is included?
a) Marine
b) Freshwater
c) Terrestrial
d) Artificial
_____ assists in environmental protection.
a) Urbanization
b) Nuclear explosion
c) Industrialisation
d) Plantation and Forestation
Soil is rarely contaminated due to
a) Acid rain
b) Chemical fertilizers
c) Pesticides
d) Mineralization
Which part of atmosphere is richest in O3 gas?
a) Stratosphere
b) Ionosphere
c) Exosphere
d) Magnetosphere
Hydrosphere does not cover
a) Oceans
b) Rivers
c) Glaciers
d) Rocks
The largest reservoir of nitrogen gas in environment is
a) Air
b) Earth’s Crust
c) Ocean
d) Plants and animals
Which one of the following is not included within the atmosphere?
a) Troposphere
b) Stratosphere
c) Lithosphere
d) Ozonosphere
The efficient utilisation of fly ash does not recommend for making
a) Portland fly ash cement
b) fly ash based building bricks
c) synthetic stone chips
d) fillers in concrete
By which chemical reaction, biodiesel is being prepared?
a) Fermentation
b) Combustion
c) Polymerisation
d) Trans esterification
Which of the following is a biodegradable pollutant?
a) Dye effluent
b) Bleaching effluent
c) Sewage
d) Heavy metals
The first step of sewage treatment:
a) Precipitation
b) Chlorination
c) Airation
d) Sedimentation
The photochemical smog is generated by
a) HCHO
b) PAN (Peroxy acetyl nitrate)
c) Acrolin
d) Moisture
Immediate remedial measure to tackle non-degradable plastic waste
pollution is
(A) Bio-diesel production
(B) as Bitumen filler
(C) C-black production
(D) Recycling
Radioactive wastes should be entrapped in leak-proof _______
containers before dumping into sea.
(A) concrete
(B) glass
(C) plastic
(D) steel
Detrimental solid waste liberated by thermal power station is
(A) Red mud
(B) Fly ash
(C) Granulated Slag
(D) Carbon black
The bed of catalyst used for conversion automobile emissions to
CO2 is made of
(A) Pt
(B) MnO2
(C) MoO
(D) V2O2
Instrument used in industry for purifying air contaminated with dust
and smoke:
(A) Scrubber
(B) Blower
(C) Extractor
(D) Electrostatic precipitator
CO level in burnt flue gas up to 150 ppm can be monitored by means
of
(A) Non-dispersive IR spectroscopy
(B) UV-Vis spectroscopy
(C) Atomic absorption spectroscopy analysis
(D) Flame photometry
Permissible limit of Arsenic in drinking water:
(A) 5 ppm
(B) 7.5 ppm
(C) 10 ppm
(D) 12.5 ppm
The most effective sewage treatment is conducted by
(A) Cation-anion exchange method
(B) Activated sludge method
(C) Incineration technique
(D) None of the above
Monitoring of SO2 gas is done by passing through
(A) [HgCl4]-2 solution
(B) K- pyrogallate solution
(C) Fehlings’ solution
(D) Ammoniacal Cuprous Chloride solution
Desalination of water is performed by
(A) Lime-soda method
(B) Permutit method
(C) Ion-exchange method
(D) Reverse Osmosis
Historical monuments and temples are badly damaged due to
corrosive action of
(A) SO2
(B) CO2
(C) NH3
(D) C2H2
The best method for sterilisation of water uses
(A) Autoclaving
(B) Ozone
(C) Chlorine water
(D) UV rays
Smoke is a colloidal suspension of
(A) negatively charged carbon particles in air.
(B) positively charged carbo-cation particles in air
(C) inert particles of carbon black in air.
(D) None of the above
Acidity of normal rain water is due to
(A) CO
(B) NO
(C) CO2
(D) H2S
Which one of the following is not metallic pollutant ?
(A) Hg
(B) Pb
(C) Cr
(D) Detergent

WBCS Main Question Paper – 2017

Fly ash solid waste is the by-product of
(A) Hydro-electric Power Stations
(B) Iron and steel plant
(C) Thermal Power Plants
(D) Nuclear Power Plants
Most hazardous metal pollutant of automobile battery is
(A) Mercury
(B) Cadmium
(C) Lead
(D) Copper
Major aerosol pollutant in jet plane emission is
(A) Sulphur dioxide
(B) Carbon monoxide
(C) Methane
(D) Fluorocarbon
In ecosystem, which one shows one way passage ?
(A) Free energy
(B) Nitrogen
(C) Carbon
(D) Potassium
Main source of water and soil pollution is
(A) Agro industry
(B) Thermal power plant
(C) Industrial effluents
(D) All of the above
Domestic waste causes
(A) Air pollution
(B) Effluents
(C) Biodegradable pollution
(D) Non-biodegradable pollution
Which one is responsible for white lung cancer ?
(A) Asbestos
(B) Lead
(C) Mercury
(D) None of the above
Which is not a pollutant ?
(A) Mercury
(B) Arsenic
(C) Lead
(D) Alumina
Mercury is emitted into air by
(A) burning coal
(B) burning garbage
(C) steam boiler
(D) diesel engine
The gases responsible for greenhouse effect are
(A) O2
(B) CO2
(C) N2
(D) SO2

WBCS Main Question Paper – 2016

The Silent Valley Movement had taken place in –
(A) Kerala
(B) Odisha
(C) Jharkhand
(D) Uttarakhand
CNG is the other name of –
(A) ethylene
(B) ethane
(C) methane
(D) acetylene
Tarun Bharat Sangh was established for water conservation in –
(A) Gujarat
(B) Maharashtra
(C) Rajasthan (1985)
(D) Madhya Pradesh
Zero waste management was first successfully implemented at –
(A) Vellore
(B) Chennai
(C) Bangaluru
(D) Mysore
The country that produces highest amount of wind energy is –
(India – 4th)
(A) Netherland
(B) Sweden
(C) China
(D) Belgium
Fly ash contains –
(SiO2, Al2O3, CaO, Fe2O3)
(A) Si
(B) Al
(C) Fe
(D) All of these
Kalundborg model is followed in-
(Denmark)
(A) solid waste management
(B) air pollution control
(C) zero waste management
(D) green technology
Average per capita municipal solid waste generated per day in India is
upto –
(450g)
(A) 100g
(B) 200g
(C) 300g
(D) 500g
The Gulf of Mannar Biosphere Reserve was mainly created to protect
(A) Coral reef
(B) Sea horses
(C) Sea cucumber
(D) All of the above
The Abyssal Zone is at a depth of –
(2000-6000 m)
(A) 1000-2000 m
(B) 2000-4000 m
(C) 4000-6000 m
(D) 6000-8000 m
Bioplastic mostly is produced from –
(A) bacteria
(B) algae
(C) fungi
(D) protozoa
Man and Biosphere program was undertaken in-
(A) 1971 (UNESCO)
(B) 1973
(C) 1975
(D) 1980
Arabari Model is representing-
(West Midnapore, started in 1972)
(A) Social forestry
(B) Joint forestry
(C) Sustainable forestry
(D) Farm forestry
What is meant by disaster mitigation ?
(A) Planning how to respond to a disaster
(B) Returning the community to normal conditions
(C) Taking immediate measures to save life and property
(D) Minimizing the possible effects of a disaster
15. Hydrogen from sea water was first introduced-
(A) Spain
(B) Italy
(C) Finland
(D) Iceland
The following is not a biosphere reserve in India-
(A) Gulf of Mannar
(B) Nanda Devi
(C) Bhitarkonika
(D) Sundarbans
WCED (World Commission on Environment and Development) report
is also called-
(Brundtland Commission – 1983)
(A) On common enemy
(B) Silent Spring
(C) Our common goal
(D) Our common future
The Mangrove forest of India constitute what per cent of the total
mangrove forest of the world ?
(A) 5%
(B) 7%
(C) 10%
(D) 3%
The direct and indirect water usage is called-
(A) water indicator
(B) water usage
(C) water balance
(D) water footprint
The number of tsunamis are highest in-
(A) Atlantic Ocean
(B) Pacific Ocean
(C) Indian Ocean
(D) Bay of Bengal
The following compound is not a persistent organic pollutant-
(A) DDT
(B) Dioxins
(C) Endosulfan
(D) Methane
The following country is curbon negative in nature-
(A) Nepal
(B) India
(C) Bhutan
(D) China
The first Eco city of the world was built in –
(A) USA
(B) France
(C) Brazil (Curitiba)
(D) UK
Basel convention is dated back to –
(A) 1978
(B) 1982
(C) 1985
(D) 1989
Energy Conservation Act was introduced in India since –
(A) 2000
(B) 2001
(C) 2003
(D) 2005
Anti-dumping of liquid waste was taken up in –
(A) London
(B) Basel
(C) Geneva
(D) Bern
The conversion of mercury to methyl mercury is brought about by-
(A) cyanobacteria
(B) Eubacteria
(C) fungi
(D) algae
Water blooms are mostly caused by-
(A) cyanobacteria
(B) diatoms
(C) dinoflagellatas
(D) green algae
The largest oil spill so far was recorded from-
(A) Alaska
(B) Gulf of Mexico
(C) Persian Gulf
(D) Arabian Sea
A severe cyclone in Richter scale has a value of-
(A) 4 – 4.9
(B) 5 – 5.9
(C) 6 – 6.9
(D) 7 – 7.9
Which one of the following is a natural disaster ?
(A) Bhopal Gas tragedy
(B) Chernobyl accident
(C) Exxon Valdez oil spill
(D) Uttarakhand forest fire
The species which are extremely sensitive to the environment are also
called –
(A) keystone species
(B) sentinel species
(C) endangered species
(D) vulnerable species

WBCS Main Question Paper – 2015

The following term is not involved in air pollution.
(A) SMOG
(B) MMD
(C) DO
(D) VC
Mufflers are commonly used to prevent the
(silencer)
(A) Radiation pollution
(B) Noise pollution
(C) Air pollution
(D) Thermal pollution
Physiological disorder may occur when the noise level reaches
(A) 110 db
(B) 120 db
(C) 135 db
(D) 145 db
PAN formation does not include
(A) Nitrogen
(B) Ozone
(C) Hydrogen
(D) Hydrocarbon
The global warming potential of CO2 is
(A) 1
(B) 2
(C) 3
(D) 4
Zoo conservation data is kept by
(A) ICBN
(B) ICZN
(C) WZCS
(D) ICTV
Marsh crocodile conservation in Sundarbans is located in
(A) Sajnekhali
(B) Sudhanyakhali
(C) Kalash Island
(D) Bhagabatpur
Tiger conservation project in India was introduced from
(Jim Corbett National Park of Uttarakhand)
(A) 1953
(B) 1963
(C) 1973 (1st April)
(D) 1983
Which one of the following reflects back more sunlight as compared to
other three?
(A) Sand desert
(B) Paddy crop land
(C) Land covered with snow
(D) Prairie grassland
The release of which of the following into ponds and wells helps in
controlling the mosquitos?
(A) Crab
(B) Dogtish
(C) Gambusia Fish
(D) Snail
Acid rain can be caused by the pollution of environment by
(A) Carbon dioxide and Nitrogen
(B) Carbon monoxide and carbon dioxide
(C) Ozone and Carbon dioxide
(D) Nitrous oxide and Sulphur dioxide
‘Green accounting’ indicates
(A) Level of environment pollution
(B) Counting of environment bodies
(C) Level of greenery in the world
(D) None of the above
Maximum solar energy is used in India in
(A) Gujarat
(B) Rajasthan
(C) Karnataka (in 2019)
(D) Tamil Nadu
Cigarette smoking is harmful for health due to the emission of
(A) Carbon dioxide
(B) Carbon monoxide
(C) Potassium permanganate
(D) Sulphur dioxide
Which country will help India to set up Jayitapur Nuclear Power station
(A) Russia
(B) France
(C) Germany
(D) Canada
‘Kyote Protocol’ signed in 1977 was related to
(A) Reduction of Greenhouse gas
(B) Pulse Polio Immunisation Programme
(C) World’s Youth Policy
(D) Nuclear disarmament treaty
Which one of the following is a greenhouse gas?
(A) SO2
(B) CO2
(C) CFC
(D) All of the above
The oldest animal conserved in India is
(A) Tiger
(B) Lion
(C) Elephant
(D) Black bear
Flowing water ecosystem is also called
(A) Pelagic
(B) Estuarine
(C) Lotic
(D) Lentic
The following compound does not react with Ozone layer
(A) CFC
(B) HFC
(C) CA(OCl)Cl
(D) CCl
The protected bird of India is
(A) Monal
(B) Dove
(C) Great Indian Bustard
(D) Crane
The acidification of oceans is increasing. Why is this phenomenon
cause of concern?
i) The growth and survival of coral reefs will be adversely affected
ii) The survival of some animals that have phytoplankton larvae will be
adversely affected.
iii) The cloud seeding and formation of clouds will be adversely affected
Which of the statement(s) given above is / or correct?
(A) 1 and 2
(B) Only 2
(C) 1 and 3
(D) All of these
“Green Party” was initiated in
(A) Germany
(B) Canada
(C) France
(D) USA (1984)
Agenda 21 was formulated in
(A) Stockholm Summit
(B) Nairobi
(C) Rio Summit (1992)
(D) Johannesburg Summit
Global Environmental facility was initiated by
(Oct, 1992)
(A) WHO
(B) UNDP
(C) UNEP
(D) WMO
International Board of Plant Genetic Resources was an initiative of
(1974)
(A) IUCN
(B) FAO
(C) UNEP
(D) FAO and UNEP
Climate Action Network formed in 1989 included
(A) 20 Countries
(B) 22 Countries
(C) 28 countries
(D) 32 Countries
The best way to get rid of biomedical waste is
(A) Incineration
(B) Autoclaving
(C) Chemical treatment
(D) landfill
The first environmental protection act in Independent India was
(Water (Prevention and Control of Pollution) Act, 1974)
(A) Air pollution Act
(B) Water Pollution Act (22nd Sept)
(C) Environmental Protection Act
(D) Hazardous Waste Act
Compressed Natural Gas is the other name of
(A) Ammonia
(B) Methane
(C) Hydrogen sulphide
(D) Carbon dioxide
The number of biodiversity hot spots in India is / are
(A) One
(B) Two
(C) Three
(D) Four
Land fill gas is the other name of
(CH4 + CO2)
(A) CO2
(B) CO
(C) H2
(D) CH4
The convention for biodiversity is dated back to
(A) 1973
(B) 1983
(C) 1993 (29 Dec)
(D) 2003
The super oil bag is actually
(A) A fungus
(B) An algae
(C) A bacteria
(D) A transgenic bacteria
The following organism is an indicator for air pollution.
(A) Algae
(B) Fungi
(C) Lichen
(D) Bryophytes
The length of the coastal zone from the high tide line is
(A) 200 M
(B) 500 M
(C) 700 M
(D) 1000 M
Biomedical waste disposal Act is dated back to
(A) 1992
(B) 1998 (July)
(C) 2000
(D) 2002
The original article which talks about protection of environment in Indian constitution is
(A) 38 A
(B) 48 A
(C) 51 A
(D) 61 A
Gm counter is used to measure the following pollution
(Geiger-Muller tube)
(A) Noise
(B) Water
(C) Radioactive
(D) Air
Gravity settling chambers are used in industries to remove ________
(A) SOX
(B) NOX
(C) Suspended particles
(D) Glass particles

WBCS Main Question Paper – 2014

One tree which yields biodiesel is
(A) jatropha
(B) teak
(C) rubber
(D) sal
Greenhouse gases emit and absorb radiation within the
(A) microwave region
(B) infrared region
(C) visible region
(D) ultra violet region

3.The gas used in refrigerators that destroys the ozone layer is
(A) ammonia
(B) chlorofluorocarbon
(C) nitrous oxide
(D) methane

The book ‘Silent Spring’ written by Rachel Carson described the
detrimental effects of
(1962)
(A) chemical fertilizers
(B) deforestation
(C) chemical pesticides
(D) greenhouse gases
Which line demarcates the coastal area of Bay of West Bengal ?
(A) High Tide Line
(B) Dampier & Hodge’s line
(C) Line of Gangetic Delta
(D) Low Tide Line
Name the turtle which rests within West Bengal sea coasts
(A) Batagurbusca
(B) Indian Soft Shelled Gangetic Turtle
(C) Indian Flap Shelled Turtle
(D) Olive Ridley
For which mangrove species maximum sweet water influx is required
?
(A) Keora
(B) Sundari
(C) Kantra
(D) Goran
Black panther is a
(A) Panther
(B) Jaguar
(C) Tiger
(D) Leopard
Which of the following Tiger Reserves is called Kingfishers’ Paradise ?
(A) Buxa
(B) Corbett
(C) Sundarban
(D) Kaziranga
Depletion of ozone layer increases the incidence of
(A) Blood cancer
(B) Lung cancer
(C) Skin cancer
(D) Brain cancer
How many biodiversity rich centres are there in India ?
(A) 1
(B) 4
(C) 12
(D) More than 12
Hot spots are areas with
(A) Low diversity
(B) High diversity
(C) Genetic diversity
(D) Ecological diversity
An estuary is a
(A) Body of water
(B) coastal body of water
(C) semiclosed coastal body of water
(D) water body of lake
Which gas caused industrial disaster in Bhopal in December, 1984
(A) Oleum
(B) Fuel
(G) MIC (methyl isocyanate)
(D) Methylamine
The depth of water of Wet Land does not exceed
(A) 6 meters
(B) 10 meters
(C) 6 feet
(D) 10 feet
To control the Global warming we should control the use of
(A) fossil fuel
(B) Renewable energy
(C) Solar energy
(D) atomic energy
Contamination of which metal with soil makes it hard for trees to take
up water ?
(A) Aluminium
(B) Magnesium
(C) Copper
(D) Zinc
Minamata disease is caused by which metal contamination ?
(A) Zinc
(B) Lead
(C) Copper
(D) Mercury
Blackfoot disease is caused by which pollutant ?
(A) Mercury
(B) Arsenic
(C) Copper
(D) Iron
Which movement is related with Forest protection ?
(A) Chipko movement
(b) Narmada Banchao movement
(c) Narmada Dam movement
(d) Green Bench
Ramsar convention (1971) is related to protection of
(A) national monuments
(B) wetlands
(C) national parks and forests
(D) coral reefs
Which bird is highly threatened by PCBs ?
(Polychlorinated Biphenyls)
(A) Sparrow
(B) Dove
(C) Ostrich
(D) Penguin

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