A) 1975 B) 2000 C) 1986 D) 1990
A) Carbon dioxide B) Methane C) Nitrogen D) Hydrogen sulfide
A) Reservoir B) Crater lake C) Glacial lake D) Artificial lake
A) Pumped in oxygen B) Evacuated nearby villages C) Built a dam D) Installed degassing pipes
A) Wildlife diversity B) Air quality C) Soil fertility D) Water temperature
A) Nigeria B) Ghana C) Uganda D) Cameroon
A) Tsunami B) Limnic eruption C) Fluvial flood D) Glacial melt
A) 200 meters B) 10 meters C) Approximately 100 meters D) 50 meters |