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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

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
Correct Answer: Less than the present
In big cities, air pollution is mainly due to:
A Burning of fossil fuel
B Thermal power plants
C Sewage
D Suspended particles
Correct Answer: Burning of fossil fuel
As compared to tap water the BOD of sewage polluted water shall be:
A High
B Low
C Same
D None of these
Correct Answer: High
The major drawback of DDT as a pesticide is that:
A Its cost of production is high
B It is not rapidly degraded in nature
C Organisms at once developed resistance to it
D It is significantly less effective than other pesticides
Correct Answer: It is not rapidly degraded in nature
Every pesticide develops its own failure as its repeated use leads to:
A The development of resistant pest varieties
B Simplification of food web
C Reduction in population of useful birds
D Increase in weed population
Correct Answer: The development of resistant pest varieties
How CO emitted by automobiles prevents transport of O2 in the body tissues?
A By changing O2 into CO
B By destroying the haemoglobin
C By forming a stable compound with haemoglobin
D By obstructing the reaction of O2 with haemoglobin
Correct Answer: By forming a stable compound with haemoglobin
Sewage drained into water bodies kills fishes because:
A It gives off a bad small
B It removes the food eaten by fishes
C It increases the competition with fishes for dissolved oxygen
D Excessive CO2 is added to water
Correct Answer: It increases the competition with fishes for dissolved oxygen
Effect of pollutions first and most marked on:
A Natural balance of our ecological environment
B Natural gaseous cycle
C Natural geochemical cycle
D Natural flora of a place
Correct Answer: Natural balance of our ecological environment
Which of the following is the use of lichens in case of pollution?
A They treat the polluted water
B They act as bio-indicators of pollution
C They promote pollution
D Lichens are not related with pollution
Correct Answer: They act as bio-indicators of pollution
Minimata disease was caused due to the consumption of:
A Sea food containing lot of cadmium
B Fish contaminated with mercury
C Oysters with lot of pesticide
D Sea food contaminated with selenium
Correct Answer: Fish contaminated with mercury
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