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Environmental Issues

92 Questions
All Exams NEET AIIMS
2012 NEET MCQ
AIPMT 2012 Prelims
In an area where DDT had been used extensively, the population of birds declined significantly because :
A.
Earthworms in the area got eradicated
B.
Cobras were feeding exclusively on birds
C.
Birds stopped laying eggs
D.
Many of the birds eggs laid, did not hatch
2012 NEET MCQ
AIPMT 2012 Prelims
Which one of the following is a wrong statement?
A.
Most of the forests have been lost in tropical areas
B.
Greenhouse effect is a natural Phenomenon
C.
Ozone in upper part of atmosphere is harmful to animals
D.
Eutrophication is a natural phenomenon in freshwater bodies
2012 NEET MCQ
AIPMT 2012 Prelims
Measuring biochemical oxygen demand (BOD) is a method used for
A.
Working out the efficiency of oil driven automobile engines
B.
Estimating the amount of organic matter in sewage water
C.
Measuring the activity of Saccharomyces cerevisae in producing curd on a commercial scale
D.
Working out the efficiency of R.B.Cs. about their capacity to carry oxygen
2011 NEET MCQ
AIPMT 2011 Mains
''Good ozone'' is found in the :
A.
Troposphere
B.
Ionosphere
C.
Stratosphere
D.
Mesosphere
2011 NEET MCQ
AIPMT 2011 Prelims
Which one of the following is correct expanded forms of the following acronyms ?
A.
IPCC = International Panel for Climate Change
B.
EPA = Environmental Pollution Agency
C.
UNEP = United Nations Environmental policy
D.
IUCN = International Union for Conservation of Nature and Natural Resources
2011 NEET MCQ
AIPMT 2011 Prelims
Which one of the following pairs of gases are the major cause of "Green house effect"?
A.
CFCs and SO2
B.
CO2 and CO
C.
CO2 and N2O
D.
CO2 and O3
2011 NEET MCQ
AIPMT 2011 Prelims
Eutrophication is often seen in :
A.
Ocean
B.
Mountains
C.
Deserts
D.
Fresh water lakes
2011 NEET MCQ
AIPMT 2011 Prelims
Which one of the following statements is wrong in case of Bhopal tragedy ?
A.
Thousands of human beings died
B.
It took place in the night of December 2/3, 1984
C.
Radioactive fall out engulfed Bhopal
D.
Methyl Isocyanate gas leakage took place
2010 NEET MCQ
AIPMT 2010 Mains
When domestic sewage mixes with river water -
A.
The river water is still suitable for drinking as impurities are only about 0.1%
B.
Small animals like rats will die after drinking river water
C.
The increased microbial activity releases micro-nutrients such as iron
D.
The increased microbial activity uses up dissolved oxygen
2010 NEET MCQ
AIPMT 2010 Prelims
The two gases making highest relative contribution to the green house gases are –
A.
CFC5 and N2O
B.
CO2 and N2O
C.
CO2 and CH4
D.
CH4 and N2O
2010 NEET MCQ
AIPMT 2010 Prelims
dB is a standard abbreviation used of the quantitative expression of –
A.
the dominant Bacillus in a culture
B.
the density of bacteria in a medium
C.
a certain pesticide
D.
a particular pollutant
2010 NEET MCQ
AIPMT 2010 Prelims
A renewable exhaustible natural resource is –
A.
Forest
B.
Minerals
C.
Coal
D.
Petroleum
2009 NEET MCQ
AIPMT 2009
Global agreement in specific control strategies to reduce the release of ozone depleting substances, was adopted by :
A.
The Montreal Protocol
B.
The Kyoto Protocol
C.
The Vienna Convention
D.
Rio de Janeiro Conference
2009 NEET MCQ
AIPMT 2009
Montreal protocol aims at :
A.
Control of water pollution
B.
Biodiversity conservation
C.
Control of CO2 emission
D.
Reduction of ozone depleting substances
2009 NEET MCQ
AIPMT 2009
Biochemical Oxygen Demand (BOD) in a river water :
A.
Gives a measure of Salmonella in the water
B.
has no relationship with concentration of oxygen in the water
C.
Increases when sewage gets mixed with river water
D.
Remains unchanged when algal bloom occurs
2009 NEET MCQ
AIPMT 2009
Chipko movement was launched for the protection of -
A.
Forests
B.
Livestock
C.
Wet lands
D.
Grasslands
2009 NEET MCQ
AIPMT 2009
DDT residues are rapidly passed through food chain causing biomagnification because DDT is :
A.
Moderately toxic
B.
Water soluble
C.
Non-toxic to aquatic animals
D.
Lipo soluble
2009 NEET MCQ
AIPMT 2009
Step taken by the Government of India to control air pollution include :
A.
Permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for vehicles
B.
Compulsary PUC (Pollution Under Control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbons
C.
Use of non-polluting Compressed Natural Gas (CNG) only as fuel by all buses and trucks
D.
Compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel
2008 NEET MCQ
AIPMT 2008
According to Central Pollution Control Board (CPCB), which particulate size in diameter (in micrometers) of the air pollutants is responsible for greatest harm to human health?
A.
2.5 or less
B.
1.5 or less
C.
1.0 or less
D.
5.2-2.5
2008 NEET MCQ
AIPMT 2008
Which one of the following is the correct percentage of the two (out of the total of 4) greenhouse gases that contribute to the total global warming ?
A.
CFCs 14%, Methane 20%
B.
CO2 40%, CFCs 30%
C.
N2O 6%, CO2 86%
D.
Methane 20%, N2O 18%
2008 NEET MCQ
AIPMT 2008
A lake near a village suffered heavy mortality of fishes within a few days. Consider the following reasons for this?
(i) Lots of urea and phosphate fertilizer were used in the crops in the vicinity
(ii) the area was sprayed with DDT by an aircraft
(iii) The lake water turned green and stinky
(iv) Phytoplankton populations in the lake declined initially thereby greatly reducing photosynthesis
Which two of the above were the main causes of fish mortality in the lake?
A.
(i), (ii)
B.
(iii), (iv)
C.
(i), (iii)
D.
(ii), (iii)
2007 NEET MCQ
AIPMT 2007
Which one of the following is not a bioindicator of water pollution ?
A.
Blood-worms
B.
Stone flies
C.
Sewage fungus
D.
Sludge-worms
2007 NEET MCQ
AIPMT 2007
Which one of the following statements is correct ?
A.
Cyanobacteria such as Anabaena and nostoc are important mobilizers of phosphates and potassium for plant nutrition in soil
B.
Both Azotobacter and Rhizobium fix atmospheric nitrogen in root nodules of plants
C.
At present it is not possible to grow maize without chemical fertilizers
D.
Extensive use of chemical fertilizers may lead to eutrophication of nearby water bodies
2007 NEET MCQ
AIPMT 2007
In a coal fired power plant electrostatic precipitators are installed to control emission of:-
A.
SPM
B.
SO2
C.
CO
D.
NOx
2007 NEET MCQ
AIPMT 2007
In which one of the following the BOD (Biochemical Oxygen Demand) of sewage (S), distillery effluent (DE), paper mill effluent (PE) and sugar mill effluent (SE) have been arranged in ascending order ?
A.
SE < PE < S < DE
B.
SE < S < PE < DE
C.
PE < S < SE < DE
D.
S < DE < PE < SE
2006 NEET MCQ
AIPMT 2006
Photochemical smog pollution does not contain-
A.
Nitrogen dioxide
B.
PAN (peroxy acyl nitrate)
C.
Ozone
D.
Carbon dioxide
2006 NEET MCQ
AIPMT 2006
Limit of BOD prescribed by Central Pollution Control Board for the discharge of industrial and municipal waste waters into natural surface waters, is -
A.
< 30 ppm
B.
< 3.0 ppm
C.
< 100 ppm
D.
<10 ppm
2006 NEET MCQ
AIPMT 2006
Montreal Protocol which calls for appropriate action to protect the ozone layer from human activities was passed in the year-
A.
1988
B.
1986
C.
1985
D.
1987
2005 NEET MCQ
AIPMT 2005
Which one of the following pairs is mismatched ?
A.
Fossil fuel burning – release of CO2
B.
Nuclear power – radioactive wastes
C.
Biomass burning – release of CO2
D.
Solar energy – green house effect
2005 NEET MCQ
AIPMT 2005
Identify the correctly matched pair -
A.
Basal Convention – Biodiversity Conservation
B.
Kyoto protocol – Climatic change
C.
Ramsar Convention – Ground water pollution
D.
Montreal Protocol - Global warming
2005 NEET MCQ
AIPMT 2005
Which of the following is not used for disinfection of drinking water ?
A.
Chloramine
B.
Ozone
C.
Chlorine
D.
Phenyl
2005 NEET MCQ
AIPMT 2005
Prolonged liberal irrigation of agricultural fields is likely to create the problem of -
A.
salinity
B.
Acidity
C.
Aridity
D.
Metal toxicity
2004 NEET MCQ
AIPMT 2004
Lead concentration in blood is considered alarming if it is -
A.
4-6 µg/100 ml
B.
30 µg/100 ml
C.
20 µg/100 ml
D.
10 µg/100 ml
2004 NEET MCQ
AIPMT 2004
In 1984, the Bhopal gas tragedy took place because methyl isocyanate :-
A.
Reacted with DDT
B.
Reacted with water
C.
Reacted with ammonia
D.
Reacted with CO2
2004 NEET MCQ
AIPMT 2004
Common indicator organism of water pollution is :-
A.
Escherichia coli
B.
Lemna pancicostata
C.
Entamoeba histolytica
D.
Eichhornia crassipes
2003 NEET MCQ
AIPMT 2003
Fluoride pollutions mainly affects : -
A.
Heart
B.
Kidney
C.
Brain
D.
Teeth
2003 NEET MCQ
AIPMT 2003
Escherichia coli is used as an indicator organism to determine pollution of water with ;-
A.
Faecal matter
B.
Pollen of aquatic plants
C.
Heavy metals
D.
Industrial effluents
2002 NEET MCQ
AIPMT 2002
Maximum green house gas released by which country :
A.
France
B.
Britain
C.
India
D.
U.S.A.
2002 NEET MCQ
AIPMT 2002
Which of the following is absent in polluted water ?
A.
Larva of stone fly
B.
Hydrilla
C.
Blue green algae
D.
Water hyacinth
2001 NEET MCQ
AIPMT 2001
What is the intensity of sound in normal conversation ?
A.
30 – 60 dB
B.
10 – 20 dB
C.
120 – 150 dB
D.
70 - 90 dB
2001 NEET MCQ
AIPMT 2001
What is B.O.D ?
A.
The total amount of O2 present in water
B.
The amount of O2 utilised by organisms in water
C.
The amount of O2 utilized by micro organisms for decomposition
D.
All of the above
2000 NEET MCQ
AIPMT 2000
Which is the cause of damage to relative biological effectiveness ?
A.
Low temperature
B.
High temperature
C.
Radiation
D.
Pollution