Question 1
How old was Greta Thunberg when she first heard about climate change and global warming?
Question 2
What's the Ozone Hole?
Question 3
How long does it take for a plastic bag to decompose?
Question 4
What is the most endangered animal in the world?
Question 5
How many degrees has the Earth warmed since the beginning of industrial revolution, in 1750?
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