Which of the following is added to iron to make iron hard and strong?
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Which of the following is the most common kidney stone-forming compound?
To enlarge their hold over India, many wars were fought between British and Indians but NOT one of the following.
The annual award of 'Gandhi Peace Prize' is given to
World Environment Day is observed on
The energy released at the end of digestion is in the form of
Find the resistance (in mega Ω) of a wire of length 10 m, cross sectional area 1 cm2 and made of a material of resistivity 100 Ωm.
Which of the following was described as the First Indian War of Independence?