Interesting materials
The colourful video about...
The colourful video about...
How humans are turning the world into plastic
How humans are turning the world into plastic
P. S. with Russian subtitles
19 questions
19 questions
Show your knowledge!
Show your knowledge!
Only 6 questions
Only 6 questions
for persons who haven't time for the previous one
for persons who haven't time for the previous one
But this one is even more interesting ;)
But this one is even more interesting ;)