Which is the hardest substance in the human body?

A. Tooth enamel
B. Skull
C. Knee cap
D. Rib

The nearest planet to the Earth is _________?

A. Venus
B. Mercury
C. Mars
D. Moon

GPS is an abbreviation for?

A. Global poles system
B. Global polysiliconium store
C. Global positioning system
D. Global position structure

Stars in the sky appear to twinkle due to _________?

A. A series of refractions
B. A series of reflections
C. A surface tension phenomenon
D. Multiple diminishing brightness

Huge cloud of gass and dust in the universe is called?

A. Constellation
B. Satellite
C. Meteorite
D. Nebula

Which of the following is good conductor of heat but bad conduct of electricity?

A. Aluminium
B. Titanium
C. Abestos
D. Mica

The SI base unit for mass is_____________?

A. Gram
B. Pound
C. Kilogram
D. Ounce

Which is the largest organ in the human body?

A. Liver
B. Heart
C. Skin
D. Kidney

How many bones in each hand?

A. 26
B. 27
C. 28
D. 30

The mass of decimole of electrons (NA) is___________________?

A. 1.008 mg
B. 0.184 mg
C. 0.054 mg
D. 5.4 mg