Questions

Since, the starting statement carries a subject; the next statement will carry a verb i.e. Q follows as it mentioned the discovery of the Regent. R will bethe continuing statement which states what he actually discovered. P follows next as it talked about the reaction of the Regent after the discovery. And S would be the concluding statement and thus form a coherent paragraph.

The correct formation would be, ‘The Regent having discovered that he had imprisoned an innocent man released Voltaire and gave him a pension.’

In the first step of DNA replication called initiation, the DNA pair gets unwidened.

Dubai airport is the busiest airport in the world.

Japanese Ukiyo-e prints depicted the everyday world or the transitory world we live.

Visible Horizon is the circle of contract, with the earth, of the cone of visual rays passing through the point of observation.