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Scientists Make Meat – level 1
05-07-2021 15:00
To have meat, you must keep animals. Scientists are...The world’s largest dam – level 1
05-07-2021 07:00
Baihetan is the world’s largest hydropower plant. A hydropower...The world’s largest dam – level 2
05-07-2021 07:00
Baihetan is the world’s largest hydropower plant, and it...The world’s largest dam – level 3
05-07-2021 07:00
The giant Baihetan hydropower plant in China opens for...People look for meteorites – level 3
02-07-2021 07:00
A meteorite is a fragment of rock or iron from outer...