There are ............ metalloids in the modern periodic table.
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Pulitzer Prize was established in _______.
During world war ii which pair were allied nations?
___, found in blood, is responsible for oxygen transportation.
When a number of resistors are connected in series in a circuit, the value of current:
Which of the following device is best suited for measuring the temperature inside metallurgical furnaces?
When did the U.S join WW-1?
In revolt against defence, U.S joined World War-1 on April 6, 1917.
The first history book was written by
The first history book was written by Herodotus around 5th century B.C.