61. The most abundant element in Earth’s crust is:
A. Silicon
B. Oxygen
C. Aluminium
D. None of these
✅ The correct answer is option Oxygen.
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62. The number of bones in the human body of an adult is approximately:
A. 210
B. 250
C. 206
D. Not fixed
✅ The correct answer is option 206.
63. Dialysis is used for the trearment of :
A. Kidney failure
B. Heart Failure
C. Brain Failure
D. None of these
✅ The correct answer is option Kidney failure.
64. Unit Decible is measurement of:
A. Electric Charge
B. Intensity of sound
C. Magnetic Flux
D. Speed of Ship And Aircraft
✅ The correct answer is option Intensity of sound.
65. Malaria is a disease which affect the:
A. Heart
B. Lungs
C. Spleen
D. Kidney
✅ The correct answer is option Spleen.