Question
Which is the lightest and most abundant chemical
element, constituting roughly 75 % of the Universeās elemental mass?Solution
The lightest and most abundant chemical element in the Universe is hydrogen. It constitutes about 75% of the elemental mass in the Universe. Hydrogen is also the first element in the periodic table, with the atomic number 1. It is a highly reactive element, and it can form a wide variety of compounds with other elements.
Which of the following countries is a member of The Indian Ocean Rim Association?
I)Ā Ā Indonesia
II)Ā Mozambique
III) Australia
IV) Yemen
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Recently IAF test-fires extended-range BrahMos from _______?
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