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