How about I tell you the first? ,Well the worlds first hardest math equation is the; P=NP equation. You should concider taking a look at it. Pretty tricky stuff!
The Best in the World PAKISTAN NAVY IS THE WORLDS 2ND BEST NAVY . remember ok
The world's third largest economy would be the United States. (1st is the world, 2nd is the EU)
Diamond 10
Amazon.
K2
No, we do not have a measure for the hardness of an entire planet.
garima 2nd
The most important, was the first and hardest; Guadalcanal. Without the 1st, there would've been no 2nd and 3rds!
the worlds most populous nation is china ;)
because of size of population,they have the worlds 1st and 2nd largest armies,they are the worlds 2nd and 4th largest economies
Damascus, Syria having first been settled in the 2nd Millennium BC.
Mauna Loa Mauna Loa