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The earth is one picture
Lumen · High school
Humboldt’s Cosmos: nature is a unity in diversity, not a stack of school subjects. The ocean, the plant, the star, and the hill share a page.
Student age
10years · 5th grade
Lumen · High school
Humboldt’s Cosmos: nature is a unity in diversity, not a stack of school subjects. The ocean, the plant, the star, and the hill share a page.
Student age
10years · 5th grade