A. Plants of a particular area
B. Area occupied by living beings
C. Plants of world
D. Spherical plants
Related Mcqs:
- The term biosphere is used for the zone of earth where life exists:
A. On the lithosphere surface
B. In the hydrosphere
C. In the lithosphere, hydrosphere and atmosphere
D. In the lithosphere and hydrosphere - If carbon dioxide is withdrawn from the biosphere, which organism would first experience negative effect?
A. Primary consumers
B. Producers
C. Secondary consumers
D. Tertiary consumers - Biosphere is that:
A. By which life originated
B. Where individuals interact with each other
C. Which relates to spherical organisms
D. Organic compound by which the life diminishes - Biosphere reserves means:
A. The protected land and coastal areas
B. That are approved under the Man and the Biosphere
C. In conjunction with the Conception on International Trade in Endangered Species (CITES)
D. All of the above - Biosphere means:
A. The part of the earth that supports life and consists of the soil, oceans
B. The waterways and the atmosphere upto 15 km above the earth’s surface
C. Waterways and the
D. None of these - The cybernetics of an ecosystem refers to:
A. Harvest index
B. A feedback mechanism
C. Regulation of equilibrium
D. Reverse energy flow - The term homeostasis in an ecosystem refers to:
A. A feedback mechanism
B. A self-regulatory mechanism
C. State of equilibrium
D. Influence of production - Niche of a species in an ecosystem refers to its:
A. Place of occurrence
B. Competitive ability
C. Centre of origin
D. Function at its place of occurrence - The term sub-soil generally refers to:
A. Horizon-C
B. Horizon-A
C. Horizon-R
D. Horizon-B - The term ‘Bio-magnification’ refers to the:
A. Growth of organism due to food consumption
B. Increase in population size
C. Blowing up of environmental issues by man
D. Increase in the concentration of non-degradable pollutants as they pass through food chain
E. Decrease in population size
