A. Biosphere
B. Community
C. Biome
D. Association
Related Mcqs:
- The living organisms of all ecosystems collectively constitute:
A. Producers
B. Decomposers
C. Consumers and decomposers
D. Biosphere - The lower most layer of atmosphere in which man and other living organisms exist is called:
A. Thermosphere
B. Mesosphere
C. Stratospheres
D. Troposphere - The earth’s atmosphere in which organisms live, is called:
A. Ecosystem
B. Ectosome
C. Biosphere
D. Bioeconomic - If there were no CO2 in the earth’s atmosphere, the temperature of earth’s surface would have been:
A. same as present
B. Less than the present
C. Higher than the present
D. Dependent on the amount of O2 in the atmosphere - Which group of three living organisms, given below is a link in food chain: Green plants …. Hawk:
A. Grasshopper, frog, snake
B. Grasshopper, rat, snake
C. Millipedes, centipedes, sparrow
D. Earthworm, hen, rat - The study of interaction between living organisms and environment in a specific area is the study of:
A. Photobiology
B. Phytogeography
C. Ecosystem
D. Phytosociology - The study of interactions between living organisms and environment is called:
A. Ecosystem
B. Phytogeography
C. Ecology
D. Phytosociology - The earth’s atmosphere contains over _____ % by volume of nitrogen gas:
A. 58
B. 68
C. 78
D. None of these - The presence of O3 in atmosphere of earth:
A. Has been responsible for increasing the average global temperature in recent
B. Is advantageous since it supplies O2 for people travelling in jets
C. Hinders higher rate of photosynthesis
D. Helps in checking the penetration of ultra violet rays to earth - Most outstanding danger at present for the survival of living beings on earth is:
A. Radiation hazard
B. Desertification
C. Deforestation
D. Gleization
The correct answer to the question: "All the living organisms on the earth interacting with atmosphere constitute:" is "Biosphere ".