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Methane and the world’s temperature – level 1
25-08-2021 07:00
Methane is a gas. It has no smell. People...Methane and the world’s temperature – level 2
25-08-2021 07:00
Methane is an invisible gas which has no smell....Methane and the world’s temperature – level 3
25-08-2021 07:00
Although carbon dioxide from burning fossil fuels is the...102-year-old man beats COVID-19 – level 1
30-07-2021 07:00
Nikolai Bagayev is 102 years old. He fights with...