Questions

The Sahara is the biggest desert in the world.

It occupies the northern one third of the African continent.

National Hockey League game is divide into 3 Periods each of 20 minutes. During the regular season, if the game ends in a tie, a 5 minute, sudden death overtime is played. In the playoffs, the overtime is 20 minutes long.

'Although rain was drenching the players the players still finished the game' is the correct sentence in which an adverb clause is underlined. This adverb clause starts with a subordinating conjunction 'although' and contains a subject 'rain' and the verb is 'was drenching'. The adverb clause changes the verb 'finished' in the main clause.

In the atom bomb, isotopes of uranium are  disintegrated with the release of a large amount of energy. Hence, the process is nuclear fission.

In the bond formation of barium with oxygen, the valency electrons from the barium transferred to the oxygen and forms an ionic bond.