411.
Driving force of ecosystem is
A
Producers
B
Plants with Carbohydrate
C
Biomass
D
Solar energy
Answer :
Solar energy
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412.
Carbon cycle includes (the following is a logical sequence
A
Producer - consumer - decomposer
B
Decomposer - consumer - producer
C
Producer - decomposer - consumer
D
Consumer - producer - decomposer
Answer :
Producer - consumer - decomposer
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413.
Science of self control in an ecosystem is called
A
Synecology
B
Autecology
C
Cybernetics
D
Edaphology
Answer :
Cybernetics
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414.
Which of the following set is green house gases
A
CFC, CH4, CO2, N2O
B
CO2,CH4,N2, O2
C
CO2, CH4, N2,O3
D
CO2,CFC,N2, O2
Answer :
CFC, CH4, CO2, N2O
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415.
Identify the correctly matched pair.
A
Basal Convention - Biodiversity Conservation
B
Kyoto Protocol - Climatic change
C
Montreal Protocol - Global warming
D
Ramsar Convention - Ground water pollution
Answer :
Kyoto Protocol - Climatic change
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416.
Life forms are used in the preparation of
A
Food chain
B
Ecologicpyramids
C
Biological spectrum
D
Quadrats& transects
Answer :
Biological spectrum
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417.
Green house effect mainly due to
A
SO2
B
CO2
C
CO
D
O2
Answer :
CO2
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418.
Hydrological cycle is controlled by
A
Grasslands
B
Forests
C
Planktons
D
Epiphytes
Answer :
Forests
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419.
Which of the following plant ahs become a water weed in this cauntry
A
Typha
B
Trapa
C
Cyperus
D
Eichornia
Answer :
Eichornia
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420.
Term ecosystem was given by
A
Odum
B
Koester
C
Tansely
D
MobiusandForbes
Answer :
Tansely
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