A. Geological erosion
B. Surface creep
C. Both (a) & (b)
D. Accelerated erosion
Related Mcqs:
- A complex of several species and communities in various stages of succession maintained under similar climatic conditions is known as:
A. Biome
B. Environmental complex
C. Biological spectrum
D. Biological clocks - A three year old plant of poplar and Tamarix gallica consumes ______ liters and ____ liters of water per day, respectively under optimum supply conditions:
A. 45,60
B. 50,70
C. 60,80
D. None of these - A group of plants living together under similar or dissimilar environmental conditions is called:
A. Vegetation
B. Flora
C. Species
D. Community - Of the ________ million ha area under cultivation, 15.62 million ha area (76%) is under irrigation:
A. 21
B. 22
C. 23
D. 24 - Conditions or factors which influence the crown closure is:
A. Manner of formation of the stand
B. Quality of soil
C. Soil moisture
D. All of the above - Influence of soil and moisture conditions means:
A. If soil is properly worked and weeding is carried out then any local spp can be planted nan area
B. It has been seen that in spite of high early success there is failure later on
C. Both (a) & (b)
D. None of these - Measurement of height there are many instruments, which can be used for this purpose; some of them are well suited to certain conditions and unsuited to others:
A. The transit
B. The Abney Level
C. The Forest Service Hypsometer
D. The Christen Hypsometer
E. All of the above - Plants growing in xerophytic conditions usually have:
A. Feebly developed root system
B. Deep and much branched root system
C. Well developed leaves
D. III developed vascular system - Forests and range lands of Pakistan and their conditions is:
A. Forests area under the control of the forest department is 4.23 m. HA.
B. Per-capita forest area is less than 0.03 ha.
C. Both (a) & (b)
D. None of these - The development of soil structure from single grained or massive states conditions:
A. Single grained: Where each soil particles function as an individual e.g. Sandy soil
B. Massive: Clay fills the spaces and pores so that the soil becomes dense and forms clods
C. Both (a) & (b)
D. None of these
The correct answer to the question: "It occurs under normal conditions:" is "Geological erosion ".