Elhuyar Zientzia
Next year, 1999, the United Nations estimates that six billion people will live on our planet.
Fertility has declined greatly in India and China, but in most undeveloped countries (especially in Africa) it is still very large.
Elhuyar Nor gara | Kontaktua | Publizitatea | Laguntza
Pribatutasun politika | Cookien politika
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