A. Halosphere
B. Psammosphere
C. Xerosphere
D. Hydrosphere
Related Mcqs:
- If a piece of land which had a plant community becomes barren due to some external thrust, the succession taking place here is called:
A. Induced
B. Deflated
C. Secondary
D. Retrogessive - Due to modification of the environment by the plant community itself, when one community is replaced by another suitable community, the succession is called:
A. Induced
B. Deflated
C. Allogenic
D. Autogenic - The most harmful effect of ionising radiations precisely involves:
A. Cell membranes
B. DNA
C. Mitochondria and ribosomes
D. Nucleus - The last stage of plant succession is:
A. Ecotone
B. Climax stage
C. Seral community
D. Ecotype - The sandy area in Thal is:
A. An array of longtudian sandy ridges, alternating with narrow valleys
B. The ridges are stabilized mainly by vegetation and too, probably by slight lime concentration on the surface in the south
C. Both (a) & (b)
D. None of these - Causes of plant succession are:
A. Environmental changes produced as a result of reaction to the community become favorable for new species of plants
B. Physiographic factors produce change in the habitat like flooding of plains, soil erosion, change in temperature, rain etc.
C. Both (a) & (b)
D. None of these - Plant succession means:
A. A change in the composition and nature of plant community of particular habitat over the years
B. Any habitat can be studied systematically provided the area is free from any external disturbance
C. Both (a) & (b)
D. None of these - Classification of plant succession categorised as:
A. Primary succession
B. Secondary succession
C. Both (a) & (b)
D. None of these - When the process of succession sidetracks the advancement line, it is called:
A. Primary
B. Deflated
C. Secondary
D. Induced - The last community in a succession is called:
A. Ecosystem
B. Climatic community
C. Ecotons
D. Seral community
The correct answer to the question: "Plant succession taking place in sandy area is precisely called:" is "Psammosphere".
