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English II
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Question-1
Which one of the following is not a functional unit of an ecosystem?
(A)
Productivity
(B)
Stratification
(C)
Energy flow
(D)
Decomposition
Question-2
Ozone layer of upper atmosphere is being destroyed by
(A)
Chlorofluorocarbon
(B)
Photochemical oxidants
(C)
Sulphur dioxide
(D)
Smog
Question-3
Decomposition of domestic wastes under natural processes is called
(A)
Industrial pollution
(B)
Thermal pollution
(C)
Biodegradable pollution
(D)
Nonbiodegradable pollution
Question-4
Transfer of energy in different trophic levels of an ecosystem is called
(A)
Bioenergetics
(B)
Biosystem
(C)
Geobiocoenosis
(D)
Holocoenotic
Question-5
The scientific study of various relationship of living things to each other and with their environment is called
(A)
Homology
(B)
Ecology
(C)
Cytology
(D)
Icthyology
Question-6
Which of the following occupies a key position in overall economic growth?
(A)
Banking
(B)
Developmnet
(C)
Agriculture
(D)
Industry
Question-7
The term 'Ecosystem' was first coined by
(A)
A.G. Tausley
(B)
Keynes
(C)
Samuelson
(D)
Alfred Marshall
Question-8
Acacia arabica is
(A)
Hydrophyte
(B)
Mesophyte
(C)
Xerophyte
(D)
All the above
Question-9
Biotic components of Ecosystem includes:
(A)
Light
(B)
Autotrophs
(C)
Water
(D)
Wind
Question-10
Scientific study of soil is called :
(A)
Pedology
(B)
Demology
(C)
Topology
(D)
Entonology
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Std 9
ICSE/ISC
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