Mediterranean Sea is full of resources. The temperate climate provide diverse and abundant agriculture, trade and knowledge exchange and technology throughout the region. Since the waters are relatively smooth, it makes trade easier an cultural exchange.
El límite entre dos cuencas se denomina como una separación de drenaje o límite de cuenca hidrográfica. Componentes de vertiente de drenaje.
Presumably journalism or science...
Answer:
We would need the whole question or page even to solve this, my best shot would be 24 because 15+9= 24. If this is wrong please forgive me.