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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 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
Presence of SO2 in atmosphere is indicated by:
A Mosses
B Liver worts
C Lichens
D Ferns
Correct Answer: Lichens
The maximum biomagnification would be in which of the following in case of aquatic ecosystem?
A Fishes
B Birds
C Zooplanktons
D Phytoplanktons
Correct Answer: Fishes
The toxic effect of carbon monoxide is due to its greater affinity for haemoglobin as compared to oxygen by (appro.)
A 20 times
B 100 times
C 2 times
D 200 times
Correct Answer: 200 times
Biological control component is central to advanced agriculture production. Which of the following is used as a third generation pesticide?
A Pathogens
B Pheromones
C Insect repellant
D Insect hormone analogue
Correct Answer: Insect hormone analogue
Measurement of the rate of O2 consumption in unit volume of water over a period of time is done to find out:
A Biogas generation
B Biological oxygen demand
C Biosynthetic path way
D Fermentation
Correct Answer: Biological oxygen demand
The supersonic jets cause pollution by thinning of:
A O3 layer
B SO2 layer
C O2 Layer
D CO2 layer
Correct Answer: O3 layer
Green house effect refers to:
A Cooling of earth
B Trapping UV rays
C Production of cereals
D warming of earth
Correct Answer: warming of earth
Carbon monoxide is a pollutant because:
A It reacts with O2
B It inhibits glycolysis
C Reacts with haemoglobin
D Makes nervous system inactive
Correct Answer: Reacts with haemoglobin
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