Which the longest river of the world.

Longest river of the world Nile river .

Which is the largest country of the world. ?

Russia is the largest country of the world. Canada is 2nd largest., india is on 7th rank on the basis of area.

Which is the tallest building of the world.

Burj Khalifa is the tallest building of the world.

poem for which harivansh rai bachan had received the padma shree

Harivansh rai Bachchan had received sahitya academy award in 1969 Padma padma bhushan award for his contribution in hindi literature.