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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

Air pollution is maximum caused by:
A Sewage and industrial effluents
B Household detergents and pesticides
C Automobile exhausts and chemicals from industry
D Sewage and pesticides
Correct Answer: Automobile exhausts and chemicals from industry
Sewage water can be purified for recycling with the action of:
A Aquatic plants
B Penicillin
C Micro-organisms
D Fishes
Correct Answer: Micro-organisms
Photochemical smog is related to the pollution of:
A Soil
B Water
C Noise
D Air
Correct Answer: Air
The cause of water pollution?
A Smoke
B 2, 4-D and pesticides
C Automobile exhaust
D Aeroplanes
Correct Answer: 2, 4-D and pesticides
Which of the following, when inhaled dissolves in the blood haemoglobin rapidly then O2?
A SO2
B CO
C N2O
D O3
Correct Answer: CO
CO is harmful to human being because:
A It decreases CO2 concentration
B It competes O2 to combine with haemoglobin
C It is carcinogenic
D It depletes O3 layer
Correct Answer: It competes O2 to combine with haemoglobin
Acid rain is mainly caused by increased concentration (in atmosphere) of:
A Ozone and dust
B NH3 and SO3
C CO and SO3
D NO2 and SO2
Correct Answer: NO2 and SO2
Ozone layer in stratosphere is effected by:
A Excess CO2
B Excess CO
C Chloro-fluoro-carbon
D Low rainfall
Correct Answer: Chloro-fluoro-carbon
Which one of the following insecticides is the most persistent in soil?
A Malathion
B Aldrin
C Gamma BHC
D None of these
Correct Answer: Aldrin
Gases commonly referred to as ‘green house gases’ are:
A CH4, N2, CO2 and NH3
B CO2, O2, NO2 and NH3
C Chloro-fluoro-carbons, CO2, NH3 and N2
D CO2, chloro-fluoro-carbons, CH4 and NO2
Correct Answer: CO2, chloro-fluoro-carbons, CH4 and NO2
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