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41.   The position of an element in the Periodic Table is determined by its __________ number.

A.     Electron

B.    Proton

C.    Neutron

D.    Positron

42.   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

43.   The planet which is easily visible from the Earth is?

A.     Mercury

B.    Venus

C.    Mars

D.    Jupiter

44.   The Great Spot is on the planet __________.

A.     Saturn

B.    Venus

C.    Mars

D.    Jupiter

45.   The Great Spot is a __________.

A.     Mountain

B.    Desert

C.    Frozen Carbon dioxide

D.    Storm

46.   The bodyguard of the Earth is __________ that save the Earth from many Comets and Asteroids.

A.     Mars

B.    Saturn

C.    Uranus

D.    Jupiter

47.   1 light year = ?

A.     9.5x10⁶ km

B.    9.5x10⁹ km

C.    9.5x10¹² km

D.    9.5x10¹⁸ km

48.   The planets visible to us without using a telescope are __________.

A.     3

B.    4

C.    5

D.    6

49.   According to Big Bang Theory, the Universe began about __________ billion years ago.

A.     10 – 20

B.    20 – 30

C.    30 – 40

D.    40 – 50

50.   Biosensor is used to measure?

A.     Blood glucose level

B.    The body pH value

C.    Amount of hemoglobin

D.    Salinity in Urine

ANSWERS:

41.   B

42.   C

43.   B

44.   D

45.   D

46.   D

47.   C

48.   C

49.   A

50.   A