286. The blood circulatory system consists of the heart and
(a) Arteries
(b) Veins
(c) Capillaries
(d) All of these
887. A man weighing 95 kg carries approximately of water.
(a) 57 kg
(b) 61.75 kg
(c) 85.5 kg
(d) 76 kg
288. The frequency of occurrence of which of the following blood groups is the minimum?
(a) AB
(b) B
(c) O
(d) A
289.Which of the following glands secrete tears ?
(a) Liver
(b) Mammary
(c) Lachrymal
(d) Salivary
290. Humus is best obtained from the
(a) Plants
(b) Atmosphere
(c) Minerals
(d) Animals
291. Which of the following is not a primary colour ?
(a) Blue
(b) Black
(c) Green
(d) Red
292. Which of the following is used for the preservation of grains ?
(a) Sodium benzoate
(b) Potassium permanganate
(c) Boric acid
(d) Sodium chloride.
293.How many signs are there in the zodiac ?
(a) 7
(b) 9
(c) 12
(d) 18
294. Cusec is the unit of
(a) Air
(b) Sound
(c) Electricity
(d) Water
295. Opium is produced from
(a) Poppy
(b) Heroin
(c) Hashish
(d) Marijuna
296. Kilohertz is a unit of measurement of the
(a) Frequency
(b) Intensity of sound
(c) Energy
(d) Distance
297. Myopia is connected with the
(a) Eyes
(b) Lungs
(c) Ears
(d) Nose
298. Which of the following is not a contagious disease ?
(a) Measles
(b) Hysteria
(c) Typhoid
(d) Tuberculosis
299. Acre is the unit of
(a) Area
(b) Volume
(c) Length
(d) Mass
300. Which of the following is a flightless bird ?
(a) Swan
(b) Hen
(c) Emu
(d) Peacock
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