Feu servir l’exemple d’un bosc o un estany per definir el concepte d’ecosistema tal com el proposa l’autor. Ens aquestes casos, quins serien els elements físics que els caracteritzen? I els biològics? Quin tipus d’interaccions creieu que s’hi estableixen?

In stage 2 farmers used the land primarily to grow food for their families and their small communities.

Based on this map, which statement about africa’s economic activity is most accurate? a) coastal countries are all members of opec b) economic development is more common with opec nations c) coastal countries have more access to productive resources d) economic development is more common above the sahara desert

Are divergent boundaries responsible for tsunamis?