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Keywords
- Textbooks3
- Astrophysics -- Statistical methods1
- Australia1
- Climatic changes -- Social aspects1
- Early childhood education1
- Ecology1
- Educational equalization1
- Human ecology1
- Inclusive education1
- Landscape changes1
- Mental health1
- Multicultural education1
- Nature -- Effect of human beings on1
- Oceanography1
- Physical geology1
- Social problems1
- United States1
- Urban pollution1