Keyphrases
Indonesia
100%
Massive Open Online Courses
69%
Marine Litter
56%
Microplastics
53%
Plastic Pollution
40%
Nutrient Export
40%
Crater Lake
40%
Kawah Ijen
40%
Extremely Acidic
37%
Europe
37%
Coastal Waters
32%
Developing Countries
31%
Acidic River
31%
Macroinvertebrates
31%
Climate Change
29%
Coastal Eutrophication
27%
Low pH
25%
Skills Lab
25%
Tire
25%
Student Perceptions
25%
Energy Crops
25%
N2O Emission
25%
Volcanic Origin
25%
Seafood
25%
MOOC
25%
Peer Feedback
25%
Coastal Ocean
23%
Riverbank
22%
East Java Indonesia
22%
Marine Litter Pollution
21%
Metal Concentration
21%
Biodiesel Production
20%
Kali
20%
Biodiesel
20%
Aquatic Systems
19%
River Basin
19%
Microplastic Sources
18%
Volcanic Lakes
18%
Nutrient Retention
18%
Pollution
18%
Ijen Crater
17%
Meuse River
17%
River Water
16%
Solid Waste Management
16%
High Concentration
16%
Hydrology
16%
Waste Management Service
16%
Sengon
16%
Microplastic Emissions
15%
Human Activities
15%