}

Six billion

1998/12/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria

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.

Gai honi buruzko eduki gehiago

Elhuyarrek garatutako teknologia