1651. In the Delhi Sultanate, the work of 'Mustauf-i-Mamalik' was related to which?
Auditing
1652. Oldest City (India)?
Kolkata
1653. What does the Preamble of our Constitution contain?
The spirit of the Constitution
1654. Photosynthesis proceeds in which sequence?
Light phase and dark phase
1655. Upto where Chandraqupta Maurya"s empire extended in the north-west?
Hindukush
1656. Which is the tax that takes away a higher proportion of one’s income as the income rises?
Progressive tax
1657. What is the role of in the rabbit and horse, the appendix?
It helps in digestion of cellulose
1658. With how many volunteers did Gandhiji start on his famous Dandi march on March 12, 1930 ?
78
1659. Who is the inventor of Seismograph?
Robert Mallet
1660. Which Rashtrakuta ruler established a victory pillar in Rameshwaram?
Krishna III