The boiling point of liquids vary as
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Which one of the following is not a property of electromagnetic waves?
Through which does light travel best?
_______ fiber is used in making bulletproof vests.
Who of the following was the last Governor General of Bengal?
Growing agricultural crops between rows of planted trees is known as
Any undesirable change in physical, chemical or biological characteristics of air, land, water or soil is called?
Which of the following was published by Gandhji during his stay in South Africa?