Approximate age of sun is _________
(A) 4.4 billion years
(B) 4.5 billion years
(C) 4.6 billion years
(D) 4.7 billion years
Which gas was discovered on the sun about 151 years ago during total solar eclipse
(A) Hydrogen
(B) Helium
(C) Nitrogen
(D) Flourine
In which layer of atmosphere does commercial aircrafts usually fly
(A) Stratosphere
(B) Troposphere
(C) Mesosphere
(D) Thermosphere
Which of the following is not a Fat_soluble vitamin
(A) Vitamin B5
(B) Vitamin B6
(C) Vitamin B3
(D) Vitamin B2
Which of the following is not a water soluble vitamin
(A) Tocopherol
(B) Pyridoxine
(C) Pantothenic acid
(D) Niacin
The vitamin Folate works together with __________ to produce new red blood cells
(A) Vitamin D
(B) Vitamin A
(C) Vitamin B-12
(D) None of the above