Which of the following natural elements has the highest melting point?
A. Tungsten
B. Iron
C. Copper
D. Silver
Dialysis is used for the treatment of_______.
A. Ulcers
B. Heart failure
C. Kidney failure
D. Both A and C (more…)
The hardest substance
in the human body is________.
A. Tooth enamel
B. Skull
C. Knee cap
D. None of these (more…)
Very small time intervals are
accurately measured by
the___________.
A. Pabsars
B. White dwarfs
C. Atomic Clocks
D. Both A and C
The primary colors of
Pigment are_________.
A. Red, Yellow, Blue
B. White, Black, Blue
C. Red, Orange, Blue
D. Red, Green, Blue (more…)
The gas used in a refrigerator to cool water is___________?
A. Nitrogen
B. Carbon dioxide
C. Methane
D. Ammonia
The human blood is divided into__________ groups?
A. Three groups
B. Six groups
C. Four groups
D. Five groups
Severe deficiency of Vitamin D results in __________.
A. scurvy
B. rickets
C. night blindness
D. osteomalacia (more…)
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