Biosensor is used to measure
(A) Blood glucose level
(B) The body pH value
(C) Amount of hemoglobin
(D) Salinity in Urine
According to Big Bang Theory, the Universe began about __________ billion years ago
(A) 10 – 20
(B) 20 – 30
(C) 30 – 40
(D) 40 – 50
The bodyguard of the Earth is __________ that save the Earth from many Comets and Asteroids
(A) Mars
(B) Saturn
(C) Uranus
(D) Jupiter
The salinity of sea water is determined by the amount of common salt (Sodium Chloride) in __________ of sea water
(A) 1 gram
(B) 10 grams
(C) 1 kg
(D) 10 kg
The position of an element in the Periodic Table is determined by its __________ number
(A) Electron
(B) Proton
(C) Neutron
(D) Positron