How many litres of blood does an adult body have?
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Chinese spacecraft Chang’e 5 has returned to the Earth, carrying samples from which astronomical body?
What is the valency of magnesium?
Which is the most important factor that determines whether advertising by manufacturing sector will lead to higher sales?
A man standing on the bank of river observes that the angle subtended by a tree on the opposite bank is 60°. When he retires 36 m from the bank, he finds that the angle is 30°. The breadth of the river is
The SI unit of electric charge is
Who was the UPA candidate for the Vice President's post in the 2017 elections?
Which of the following Prime Ministers was awarded Bharat Ratna?