1. The largest and highest plateau in the world is the Pamir mountain, called the "roof of the world", which is still being formed by the collisions of the Indo-Australian and Eurasian tectonic plates. 7,649 m high .
2.The largest is the Sahara Desert , a subtropical desert in northern Africa. It covers a surface area of about 90,64,958 km² .
3. Baltic Sea White is the longest canal .
4.Greenland is largest of all islands .
5.June 21 is longest day observed.
6. Sahara is largest desert in world.
7.Andes mountain range is longest mountain range in the world.
8.Australia is the smallest continent .
9.December 22 is observed as shortest day.
10. Neptune is the coldest planet .
11. Giraffe is the tallest animal .
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