Which of the following causes damage to bridges, iron railings and all objects made of metals?
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Which of the following is not a constituent of biogas?
As it relates to international trade, dumping
'Cow' has been declared as the personality of the year 2015 by
Which of the following coloured light has the lowest frequency?
If the frequency of a sound wave of given velocity is increased , how will it affect its wavelength?
Which celebrity is the author of the book 'An Unsuitable Boy'?
A beedi making workshop can hire 5 women by paying them Rs. 300 per day. The 6th woman demands Rs. 350 per day. If this woman is hired then all other women must be paid Rs. 350. The marginal resource (labour) cost of the 6th woman is