51. Medium sized kidney stones are removed by__________?
A. Dialysis
B. Lithotripsy
C. Excretion
D. Laser

52. In radiation, which of the following has strong photons?
A. X-Rays
B. Gamma
C. Microwave
D. Electromagnetic

53. Molasses is a byproduct of ______ Factory ?
A. Fertilizer
B. Cotton seed oil
C. Sugar
D. Banaspati Ghee

54. Carbon dioxide was discovered by_______?
A. Niels Bohr
B. Amedeo Avogadro
C. Joseph Black
D. None of Above

55. Symbol of Iron is__________?
A. Na
B. Fr
C. Fe
D. Zn

56. An ordinary mobile phone communicate by using___________?
A. Sound waves
B. Infrared waves
C. UV waves
D. Radio waves

57. Which of the following disease affects the skin ?
A. Rickets
B. Osteoporosis
C. Anemia
D. Pellagra

58. Milk contains water
A. 70%
B. 75%
C. 87%
D. 90%

59. Only planet whose day is longer than its year is__________?
A. Mercury
B. Neptune
C. Venus
D. None of These

60. A force applied on a body through the string is called_________?
A. Weight
B. Momentum
C. Tension
D. Torque

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