411. Driving force of ecosystem is

A Producers
B Plants with Carbohydrate
C Biomass
D Solar energy
Answer :   Solar energy
Discuss Question

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
Discuss Question

413. Science of self control in an ecosystem is called

A Synecology
B Autecology
C Cybernetics
D Edaphology
Answer :   Cybernetics
Discuss Question

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
Discuss Question

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
Discuss Question

416. Life forms are used in the preparation of

A Food chain
B Ecologicpyramids
C Biological spectrum
D Quadrats& transects
Answer :   Biological spectrum
Discuss Question

417. Green house effect mainly due to

A SO2
B CO2
C CO
D O2
Answer :   CO2
Discuss Question

418. Hydrological cycle is controlled by

A Grasslands
B Forests
C Planktons
D Epiphytes
Answer :   Forests
Discuss Question

419. Which of the following plant ahs become a water weed in this cauntry

A Typha
B Trapa
C Cyperus
D Eichornia
Answer :   Eichornia
Discuss Question

420. Term ecosystem was given by

A Odum
B Koester
C Tansely
D MobiusandForbes
Answer :   Tansely
Discuss Question


Practice More MCQ Question on Biology Section