In fish liver oil, there is: Vitamin A only Vitamin D only Vitamin A and Vitamin E Vitamin A and Vitamin D
The isotopes of any element contain equal number of: Protons Neutrons Both electrons and protons None of these
The ionosphere is located within the thermosphere and extends: From 60-300 km above the Earth's surface From 50-200 km above the Earth's surface From 50-300 km above the Earth's surface None of the above
If the radius of a circle is increased three times, then its area is increased: Three times Six times Nine times None of these
The protein molecule is made of: Alkaloids Nucleosides Short range chain of amino acids Long range chain of amino acids
The heavy water is: Denoted by Dâ‚‚O and contains simple hydrogen Denoted by Hâ‚‚O and contains deuterium Denoted by Dâ‚‚O and contains deuterium Denoted by Hâ‚‚O contains simple hydrogen
