Investigation work: Rivers in Castilla y León

We Investigate about the main rivers in our region.

Every  group have 2 people. The work have  these points:

• Main  rivers in our region (Castilla and leon), with a  river map.
• Especially the features os the rivers Tera, Esla and Orbigo, features as  sources, basins, flows,  reservoirs ...
• Especially the differences from winter to summer in their flows.    
• How  is the way that  we take the water supply for  Benavente?
• How is the landscape next to the rivers? Type of vegetation.
• Explain why water pollution  is such a serius problem in the world.
• Examine two o three especific problems in our rivers: Esla, Tera and Orbigo.
• Argue what we can all do about it.

Task: Write an essay  with all the information, with pictures.