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Helium is used for filling weather balloons because: 1. Helium gas is lighter than air and it has lesser density as compared to the air. So, we observe that the balloon starts rising upwards and this is because of its less density than air i.e. about one-eighth times lesser than air. 2. It is inert and non-flammable and therefore does not react with air or surroundings or gets explode.
Who was the second emperor of the Mughal dynasty in India?
Which of the following statements about Qutubuddin Aibak is INCORRECT?
I) He founded the Tughlaq dynasty in 1206.
II) He died playing polo...
Who was responsible for the destruction of Vikramashila, one of the three major Buddhist monasteries in India during the Pala Empire?
Which of the following inscriptions give the information about two Ashwamedha Yajnas performed by the King Pushyamitra Sunga?
The First Battle of Tarain in 1191 was fought between Muhammad Ghori and which Rajput ruler?
The battle of haldighati was fought between Maharana Pratap and Akbar in the year?
In which year did the historic Battle of Haldighati take place?
Who was the founder of the Maurya Dynasty?
Who was the last Viceroy of India?