geography
the biggest country in the world?
Russia
lightest chemical element
hydrogen
longest river in the world?
Amazonka
serial number of carbon
12
The most powerful Belarusian glaciation
Dnieper
second most abundant element in the universe
helium
What is the population of Belarus
9200000
the most radioactive element
plutonium
The most populated country in the world
China
most expensive precious metal
platina
platinum