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English I
Economics
Computer Application
Physics
Chemistry
Biology
Mathematics
History & Civics
Geography
English II
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Question-1
Ozone day is observed on
(A)
September 16
(B)
April 25
(C)
January 15
(D)
December 16
Question-2
Decomposition of domestic wastes under natural processes is called
(A)
Industrial pollution
(B)
Thermal pollution
(C)
Biodegradable pollution
(D)
Nonbiodegradable pollution
Question-3
Which one of the following is NOT a gaseous bio geo chemical cycle in ecosystem?
(A)
Nitrogen cycle
(B)
Carbon cycle
(C)
Sulphur cycle
(D)
Phosphorus cycle
Question-4
Which one of the following is not a functional unit of an ecosystem?
(A)
Productivity
(B)
Stratification
(C)
Energy flow
(D)
Decomposition
Question-5
The term 'Ecosystem' was first coined by
(A)
A.G. Tausley
(B)
Keynes
(C)
Samuelson
(D)
Alfred Marshall
Question-6
Biotic components of Ecosystem includes:
(A)
Light
(B)
Autotrophs
(C)
Water
(D)
Wind
Question-7
Acacia arabica is
(A)
Hydrophyte
(B)
Mesophyte
(C)
Xerophyte
(D)
All the above
Question-8
Scientific study of soil is called :
(A)
Pedology
(B)
Demology
(C)
Topology
(D)
Entonology
Question-9
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-10
In every decade Indian population gets increased by about
(A)
24%
(B)
25%
(C)
28%
(D)
26%
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Std 9
ICSE/ISC
Practice in Related Chapters
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