Resposta :
2. The two types of material used to build solar water heater are PET bottles and long-life milk packaging.
3. The person responsible for the project is José Alano.
4. He was given the Ecology Award in 2004.
5. The water heaters were initially installed in the regional offices of various departments of the State Environmental System, as well as on several university campuses around Paraná.
6. government, interesting, experiment, materials, agencies, solar, operation, process, estimated, proposed, association.