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People in Switzerland vote about saving nature – level 1
26-09-2024 07:00
People in Switzerland vote about protecting nature. Some people...People in Switzerland vote about saving nature – level 2
26-09-2024 07:00
Switzerland had a big vote about saving nature. The...Air Health in USA – level 1
27-08-2024 15:00
Scientists study air pollution. From 1999 to 2015, they...Air Health in USA – level 2
27-08-2024 15:00
From 1999 until 2015, scientists studied concentrations of fine...Air Health in USA – level 3
27-08-2024 15:00
A recently published study analysed concentrations of fine particulate...