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ELS VOLCANS
Geis P.
De mitjana, cada setmana entren en erupció quatre o cinc volcans en algun indret de la Terra? En un dia qualsevol, un dels més de mil guèisers que hi ha al món pot fer emergir cap al cel aigua bullent. Cada dia, centenars de petits terratrèmols fan tremolar la Terra i, una vegada al mes, es produeix en algun lloc un gran terratrèmol. Això és el resultat del món bulliciós que amaga l'interior del planeta!
