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Agriculture Mcqs 7387 MCQs [All-Courses]

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Agriculture MCQs cover fundamental and applied concepts related to farming, crop production, soil science, irrigation, fertilizers, plant breeding, pests, and agricultural economics. This topic is designed to strengthen conceptual understanding and problem-solving skills through objective questions. It is especially useful for competitive exams such as PPSC, FPSC, KPPSC, BPSC, NTS, OTS, and other testing services, helping candidates prepare with exam-oriented and up-to-date agricultural knowledge.

All Topics  7387

Which type of the following ecological pyramids are never inverted?
A Pyramids of number
B Pyramids of energy
C Pyramids of biomass
D Pyramids of dry biomass
Correct Answer: Pyramids of energy
Division of forest into stands on the basis of composition is / are:
A Pure stand
B Mixed stand
C Both (a) & (b)
D None of these
Correct Answer: Both (a) & (b)
Other material values of biological diversity are:
A Many natural or semi-natural ecosystems
B Some of which may be high biological diversity, are of considerable benefit to man
C To role of forests in watershed regulation and stabilization of soils in erosion-prone areas
D All of the above
Correct Answer: All of the above
Maintenance of Biological Diversity is:
A In-situ conservation
B Ex-situ conservation
C Why conserve biological diversity
D All of the above
Correct Answer: All of the above
Biological diversity resources are:
A Food
B Pharmaceuticals
C Both (a) & (b)
D None of these
Correct Answer: Both (a) & (b)
The types of bio-diversity are:
A Genetic diversity
B Species diversity
C Ecosystem diversity
D All of the above
Correct Answer: All of the above
The causes of loss of biological diversity are:
A Over hunting is perhaps the most obvious direct cause of extinction in animals, as it has affected several large and well-known species
B Genetic diversity as represented by genetic differences between discrete populations with wild species, is liable to reduction as result of the same factors affecting species
C A major, though at present largely unpredictable, change in natural environments is likely to occur within the next century as a result of large-scale changes in global climate and weather patterns
D All of the above
Correct Answer: All of the above
Reserpine is obtained from:
A Dioscuri
B Taxus
C Rauvolfia
D Papaver
Correct Answer: Rauvolfia
The approximate number of plant species, according to WCMC, that have become extinct in the last four centuries:
A 834
B 483
C 533
D 384
Correct Answer: 384
Bio-diversity means:
A A contraction of biological diversity.
B The range of variation or differences among
C Some set of entities; biological diversity thus refers to variety within the living world
D All of the above
Correct Answer: All of the above
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