Where is the world's highest volcanic mountain Cotopaxi located?
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Opportunity costs exist because
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In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.
At large
Saint Kabir was the disciple of whom?
49th Parallel is the boundary line between which two countries?
If X2+4y2+z2-4x-2z+5-0, then find the value of y15+x5z14
If r sinθ=3 and r cosθ=1, then the values of r and θ are: (0°⩽θ≤90°)
A solid sphere of diameter 17.5 cm is cut into two equal halves. What will be the increase (in cm2) in the total surface area?