271. Which waves are used in sonography?
A. Ultrasonic waves
B. Electromagnetic Waves
C. Fundamentals of waves
D. Transverse wave

272. Which instrument is used to measure the power of electric circuit ?
A. Wavemeter
B. Viscometer
C. Wattmeter
D. None of these

273. Which of the following invention is oldest ?
A. Clock
B. Microscope
C. Barometer
D. Cycle

274. What part of the brain controls thirst and hunger?
A. Thalamus
B. Hypothalamus
C. Aymgdala
D. None

275. Cover of the capsule is made of__________?
A. Paper
B. Polythene
C. Eggshell
D. Gelatin

276. Birth control pills contain synthetic________?
A. Sugars
B. Hormones
C. Vitamins
D. Minerals

277. Hyetology is the study of__________?
A. High pressure
B. Rainfall
C. High temperature
D. Earthquake

278. The main cause of floods in the river is__________?
A. Heavy snowfall
B. Earthquakes
C. Deforestation
D. Construction of dams

279. All of the following organs in the human body are located both on the right and the left sides, except;_________?
A. Lungs
B. Kidneys
C. Spleen
D. Eyes

280. Which of the following is both endocrine and exocrine gland?
A. thyroid
B. pancreas
C. parathyroid
D. all of these

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