CLEAN : Ecuadorans build pollutant-absorbant rafts to decontaminate estuary

What is the primary focus of the initial section on environmental systems?

• River contamination

• Floating structures and materials

• Air pollution

• Soil erosion

What new concept is introduced in the section on river contamination?

• River contamination

• Deforestation

• Air quality

• Wildlife conservation

Which section discusses the knowledge of existing systems?

• None of the above

• Introduction to Environmental Systems

• Role of Floating Structures

• Understanding River Contamination

What is the purpose of floating structures as discussed in the final section?

• To maintain certain materials afloat

• To clean the river

• To generate electricity

• To support marine life

What issue is briefly mentioned in the final section?

• Deforestation

• Contamination

• Air pollution

• Overfishing