QUESTION BANK OF EST(22447)
1)Planting trees in a deforested land is known as
a) afferestation
b) deforestation
c) Silviculture
d) Sericulture
2)The ICUN headquarters are at :
a) Morges,Switzerland
b) Paris,France
c)Vienna,Austria
d) New York,USA
3)Lime is added to the soil which is too
a) Sandy
b) Salty
c)Alkaline
d)Acidic
4) The least porous soil among the following is a
a)Loamy soil
b) Silty soil
c)Clayey soil
d)peaty soil
5)Biodiversity of geographical region represents
a) Genetic diversity present in the dominant species of the region
b) Species endemic to the region
d) Endangered species found in the region
6) Which one of the following represent maximum number of species among global biodiversity?
a)Algae
b)Lichens
c)Fungi
d)Mosses and Ferns
7) Some of the nutrient cycles are labelled as below : Sulphur cycle
1)Phosphorus cycle
2)Carbon cycle and
3) Nitrogen cycle
4) Of these,the sedimentary cycle is represented by
a) (1)Only b) (2)Only
c) (3) Only d) (1) and (2) Only
8)Among the ecosystem mentioned below, Where can one find maximum biodiversity?
a) Mangroves
b) Desert
c)Coral reefs
d) Alpine meadows
9) The study of ecosystem is called as
a)Environment
b)Ecology
c) E-study
d) Cosmos
10)The term Ecology was given by ________ in 1869
a)Earnest Haeckel
b) Newtons
c)S.W.Fleming
d)S.D.Lal
11)Grass->Rabit->Fox is an example of
a)parallel food chain
b)grazing food chain
c)detritus food chain
d)animal food chain
12) Ecological pyramids are of three types.One is pyramid of numbers,second is pyramid of
biomass and third is pyramid of
a) Sun
b) Wind
c)Water
d)Energy
13) The organisms which feed on dead organisms, wastes of living organisms are called
a) chemotrophs
b) carnivores
c)detritivores
d)decomposers
14)Approximately____% of the known species are insects.
a)31
b) 21
c)11
d) 61
15)Chilka lake is in
a) Maharashtra
b)Bihar
c)Orissa
d)U.P
16) WCMC stands for
a) World Conservation Monitoring Centre
b) World Control Monitoring Centre
c)Wild Cnservation Monitoring Centre
d) World Conservation Management Centre
Chapter 04
17)A pH of 4 is______ times more acidic than a pH of 5.
a)5
b) 10
c)100
d)75
18)The major component of photochemical amog is____
a) sulfuric acid
b) ozone
c)particulate matter
d)nitrogen dioxide
19)The environmental cause of increase in skin cancer,cataract and mutation is
a)acid rain
b) global warming
c)nuclear winter
d) ozone depletion
20) DDT is the
a)Natural pollutants
b)primary pollutants
c)Secondary pllutants
d)None of these
21)The pH scale is logarithmic: thet is ,each unit on it is 10 times greater than the previous one.
a) True b)False
22) Global warming over the 21st century will likely result in a 10 meter rise in ocean levels.
a)True b)False
23) CO2 is an example of
a)Artificial pollutant
b)Quantitative pollutant
c)Qualitative pollutant
d) None of these
24) The unit of sound level is_____.
a)decibel
b) noise-meter
c)dolphan
d) dub
25)Air bonne organic materials such as spores,pollen,bacteria,fungi cause several diseases and
allergic reactions called as...
a)hay fever
b)T.B
c) Ronbix
d)Altra-Rix
26) Water having DO content below_____is considered to be highly polluted.
a)4.0 mg/L
b)8.0 mg/L
c) 11.2 mg/L
d) 0.01 mg/L
27)Noise level beyond____db cause physical discomfort.
a)1120 b)10
c) 120 d)0
28)The total mass of the earth’s hydrosphere is about_____18 tonnes.
a) 1 b)2
c)3 d)1.4
29)The fresh water located in the pore space of soil and rocks is called as
a)sub surface water
b)well water
c)ice water
d)polluted water
30) ______is caused due to poor drinking water.
a)Cholera
b) Maleriya
c)Dengu
d)Asthama
31)Domestic sewage is____% of pure water
a)99.9 b)9.9
c)90.9 c)100
32)The World ‘smog’ is coined out of smoke and______
a)smell
b)Fog
c)flock
d)foc
33)Radon gas is formed from decay of______
a)Radium
b)Methane
c)Sodium
d)Atom
34)Organic matter constitue____% of the municipal solid waste genrated in India.
a) 10-20 b)35-40
c)40-60 d)80-90
35)Which is greenhouse gas?
a)CO2
B) Ozone
c)CH4
d)CFC
36)Which is not a treatment measures for watershed development
a)Contour
b) Gravity dam
c)Contour trenching
d) Contour stone walls
37)Rain water harvesting is not.....
a) catching and holding rain where it falls and using it.
b)storing it in tanks
c)recharging groundwater
d) harvesting the crops with rain water
38) which of the following would NOT be another name for a wetland?
a)bays
b)swamps
c)marshes
d)bogd
39)Wetlands play an important role in watersheds.What is a wetland?
a)an area of land where few plants and animals can live.
b)an area of solt water whales can be found
c)a very dry area of land
d)an area of land that is wet at least part of the year
40)One effect of global warming is a rise in sea levels,which certainly could affect coastal cities that
are little above current sea level. How much has the sea level risen in the past 100 years?
a)1-2 inches
b)6-8 feet
c)6-8 inches
d)1-2 feet
41)Which stae has made it compulsary to harvest rain water for all building?
a)Rajasthan
b)West Bengal
c)Tamilnadu
d)Maharashtra
42)The pH scale is logarithmic: that is each unit on it is 10 times greater than the previous one.
a) True b) False
43) An ozone hole can occur only over Antractica.
a) True b) False
44) In 1992 Earth summit held at
a) Delhi
b) Mumbai
c) Rio de janeiro
d) New-york
45)Acid rain
a) increases the pH of soil
b) decreases the pH of soil
c) does not change the pH of soil
d) Increases tje frtility of soil
46) In mumbai, what is the minimum plot area for which rain water harvesting is mandatory?
a)2000sq.m.
b)500 sq.m
c)1000 sq.m
d)1500 sq.m.
47)Which of the following activities contributes the most to corbon emission globally?
a) Agriculture
b) Transport
c)Forestry
d)Energy supply
48)Nuclear power plants are typically fueled with what?
a) True b) False
49)The article_____in the constitution recognizes environment protection as one of the fundamental
duties of every citizen of india.
a)Article 42
b) Article 48A
c)Article 51A(g)
d)Article 57A(g)
