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Where it grows the biggest tree in the world

Indian Ocean - the warmest ocean in the world

The heaviest metal in the world - what about him?

The Danube River: across Europe

The freezing point of water - ???

The mysterious constellation of the Dragon

Large crane fly - a valuable link in the chain of the environment

Night butterfly - the economic importance and the damage

Orion's Belt - constellation and legend

Scolopendra home - a poisonous family friend

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