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The word ‘dilemma’ means ‘a situation in which a difficult choice has to be made between two different things you could do’. So the word ‘difficult’ need not be used with it. The chinampas were an ingenious solution to a dilemma that had vexed the inhabitants of the Valley of Mexico for more than a millennium.
The important ore of aluminium is-
Lexan is a man-made polymer used for making
How many oxygen atoms are present in a molecule of Aluminum sulfate, Al₂(SO4₄)₃ ?
Which of the following is NOT a base?
How many carbon atoms are present in a molecule of propene?
Which drug is used to cure Hypertension?
Which of these elements is NOT classified as a d-block element?
The rate of evaporation increases with ______.
What is the molecular formula of chloroform?
Which of the following glass absorbs ultraviolet rays which are harmful for the eyes?