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environmental expertise (2) |
екологічна компетентність (2) |
основна школа (2) |
основная школа (2) |
экологическая компетентность (2) |
educational process (1) |
environmental activities of task approach the problem of environmental physics conten (1) |
primary school (1) |
the primary school (1) |
екологічна діяльність (1) |
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