(A) Blood glucose level ()
(B) The body pH value (X)
(C) Amount of hemoglobin (X)
(D) Salinity in Urine (X)

Answers: Biosensor is used to measure Blood glucose level.

(A) 3 (X)
(B) 4 (X)
(C) 5 ()
(D) 6 (X)

Answers: The planets visible to us without using a telescope are 5.

(A) 1 gram (X)
(B) 10 grams (X)
(C) 1 kg ()
(D) 10 kg (X)

Answers: The salinity of sea water is determined by the amount of common salt (Sodium Chloride) in 1 kg of sea water.

(A) Lungs (X)
(B) Liver (X)
(C) Heart (X)
(D) Kidneys ()

Answers: Blood is cleaned by Kidneys.

(A) Jupiter (X)
(B) Venus (X)
(C) Mars (X)
(D) Mercury ()

Answers: The planet that moves round the Sun at the highest speed is Mercury.

(A) Venus ()
(B) Mercury (X)
(C) Mars (X)
(D) Moon (X)

Answers: The nearest planet to the Earth is Venus.